I want to use natbib package. This is the requirement of the journal citations:

  1. References should be cited in text in square brackets by giving the last name of the author and the date of publication, e.g. [Wong (1989)]. For papers by two authors, the last names are joined by “and” e.g. [Al-Hussaini and Abd-El-Hakim (1989)].

With natbib, two authors will be joined using '&', how to change that?

2.References are given in brackets unless the author’s name is part of the sentence, e.g. “the a-model [Gupta et al. (1997)]” but “according to Gupta et al. [1997].”

I cannot use the square option in natbib as it will change all other citation of year to square. But I want to use [year] in text citation only. How to set that?

  • Welcome to TeX.SE.
    – Mico
    Jul 22 '21 at 5:49
  • Please tell us which bibliography style you use at present.
    – Mico
    Jul 22 '21 at 5:50
  • 1
    Please consider accepting/upvoting the provided answer :) Jul 26 '21 at 2:10

It's straightforward to achieve your formatting objective by creating variants of the \citet and \citep commands.

enter image description here

@misc{aa:89,author="Al-Hussaini and Abd-El-Hakim",title="{BB}",year=1989}
@misc{gupta:97,author={Gupta and X and Y},title="{CC}",year=1997}

\bibliographystyle{unsrtnat} % or some other suitable bib style
%% created "bracketed" variants of \citep and \citet
\newcommand\brcitet[1]{\citeauthor{#1} [\citeyear{#1}]}

\setlength\parindent{0pt} % just for this example



\dots\ according to \brcitet{gupta:97} \dots
  • Thanks a lot. It really help.
    – una
    Jul 22 '21 at 7:12
  • how to change the et al in italics? any idea?
    – una
    Jul 26 '21 at 9:45
  • @una - For a substantially new question, please post a new query. That way, many more potential readers will see you query, and some will hopefully be in a position to provide an answer.
    – Mico
    Jul 26 '21 at 14:04
  • Thanks @Mico, for your advice. I found the solutions from here: tex.stackexchange.com/questions/532367/… .
    – una
    Jul 27 '21 at 3:38

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