When I cite a piece with two authors, LaTeX does something like (Author1 and Author2, 2018). I want to change the "and" to "y", so that the citation call-out becomes something like (Author1 y Author2).

I'm using the natbib citation management package and the apalike bibliography style, and babel for the Spanish language.

  • 1
    Welcome to TeX SX! Would you consider loading ``biblatex-apa` instead? This should be automatic with biblatex.
    – Bernard
    Sep 7, 2018 at 22:48
  • Thanks for your answer, I could solve it keeping natbib, I have just posted down the answer Sep 8, 2018 at 1:24
  • (+1) Fine! Note however customising biblatex  is usually much easier than customising a .bst file (it's LaTeX syntax).
    – Bernard
    Sep 8, 2018 at 1:32
  • Thanks!, I'll try biblatex later. How can you write "biblatex" on that way?, I mean inside that gray square Sep 8, 2018 at 2:07
  • @Bernard - The steps involved in customizing a bst file can range from the nearly trivial to the nearly infeasible (even for a BibTeX expert...). The complexity really depends on the intended customization. In the case of the OP's query, I'd say the customization complexity is close to trivial -- the more so since the OP located an earlier posting that involved the exact same customization, except for the minor fact that the language-specific conjunction is now y rather than i.
    – Mico
    Sep 8, 2018 at 8:14

1 Answer 1


I solved it!!

The answer is based on the following query: Change citation conjunction from “and” to “i”

I copied the system file apalike.bst to the file apaesp.bst. Then, in the apaesp.bst file, I changed all instances of " and " to " y ". I also changed things like "Technical Report", "In", etc to Spanish.

Finally I modified the \bibliographystyle instruction to this:


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