However, [the plos.bst] style file does not seem to be compatible with the natbib command.
You may be mixing up two aspects of the process of creating (i) a bibliography and (ii) citations to entries in the bibliography. The first aspect -- determining how entries are typeset in the bibliography -- is handled by the bibliography style file (plos.bst in your case). The second aspect -- how citations/references to entries in the bibliography are formatted -- is handled by .
By loading with the option, you are actually instructing the package to create numeric-style citations. If you want authoryear-style citations -- as would seem to be indicated by your attempted use of the command -- you must specify the option instead.
Incidentally, when natbib is set to perform authoryear-style citations, specifying the option is not necessary (and has no effect).
Addendum: From the OP's follow-up comments, I gather that a hybrid between "pure" numeric and authoryear citation styles -- viz., a combination of the author's (or authors') name and the associated citation number -- is what's needed. If this interpretation is correct, the following command may be of use (to be placed in the preamble):
Invoking (assuming that is the key to an entry which is listed first in the references and which has two authors, named Author1 and Author 2) will then generate the citation .
- a reference to a label in your BibTeX file whenever you want to cite an item in the file
- a reference to the bibliography style file you want to use, which determines how the references you cite are formatted in the bibliography of your document (and possibly a LaTeX style file associated with the bibliography style)
- a LaTeX command to generate the bibliography at the point in your document where you want it to appear.
Here is an example using the bibliography style , which produces citations in "author (year)" format. This file is available on this page (which has instructions on where to put the file once you get it). The lines related to BibTeX are highlighed. It requires the LaTeX style file to produce citations in the right style in the text (matching the format of the references produced by ). You probably have this file already (assuming you have some implementation of TeX on your computer). If you don't, you can get it on this CTAN page. Hover over orangetext to see explanations.
When you run the LaTeX file through LaTeX and BibTeX (instructions below), you'll get output for the body of the document that looks roughly like this:
This document illustrates the use of BibTeX. You may want to refer to Arrow et al. (1961) or Aliprantis and Border (1994) or Maskin (1985). Or you may want to cite a specific page in a reference, like this: see Maskin (1985, p. 199). Or perhaps you want to cite more than one paper by Maskin: Maskin (1985, 1999). Or you want to make a parenthetical reference to one or more articles, in which case the \citealt command omits the parentheses around the year (Arrow et al. 1961).A few more options for the command are available. Here they are:
|Jones et al. (1990)|
|Jones, Baker, and Smith (1990)|
|(Jones et al. 1990)|
|(Jones, Baker, and Smith 1990)|
|(Jones et al., 1990, p. 99)|
|(e.g. Jones et al., 1990)|
|(e.g. Jones et al., 1990, p. 99)|
|Jones et al.|
|Jones, Baker, and Smith|
|*||Jones et al.'s (1990)|
*Assumes \citeapos is defined in your style or document like this:(Thanks to Christopher M. Duncombe Rae for pointing out this simple way of generating a possessive citation.)
The list of references will look like this:
Aliprantis, Charalambos D. and Kim C. Border (1994), Infinite Dimensional Analysis. Springer, Berlin.
Arrow, Kenneth J., Leonid Hurwicz, and Hirofumi Uzawa (1961), "Constraint qualifications in maximization problems." Naval Research Logistics Quarterly, 8, 175–191.
Maskin, Eric S. (1985), "The theory of implementation in Nash equilibrium: a survey." In Social Goals and Social Organization (Leonid Hurwicz, David Schmeidler, and Hugo Sonnenschein, eds.), 173–204, Cambridge University Press.
Maskin, Eric S. (1999), "Nash equilibrium and welfare optimality." Review of Economic Studies, 66, 23–38.
Example usingHere is an example using the bibliography style , which in included in many LaTeX systems.
When you run the LaTeX file through LaTeX and BibTeX (instructions below), you'll get output for the body of the document that differs from the output when you use only in that the names of all three authors of Arrow, Hurwicz, and Uzawa (1961) are listed in the first citation to that work, although not in the second, parenthetical, citation.
The list of references differs more significantly from the list produced by : only authors' initials, not their full first names, are included, and "&" rather than "and" is used as a separator; numbers in page ranges are separated by hyphens, rather than the conventional en-dashes. Precisely, the list of references produced by looks like this:
Aliprantis, C. D. & K. C. Border (1994), Infinite Dimensional Analysis. Berlin: Springer.
Arrow, K. J., Hurwicz, L., & Uzawa, H. (1961), Constraint qualifications in maximization problems. Naval Research Logistics Quarterly, 8, 175-191.
Maskin, E. S. (1985), The theory of implementation in Nash equilibrium: a survey. In L. Hurwicz, D. Schmeidler, & H. Sonnenschein (Eds.), Social Goals and Social Organization (p. 173-204). Cambridge: Cambridge University Press.
Maskin, Eric S. (1999), Nash equilibrium and welfare optimality. Review of Economic Studies, 66, 23-38.