# How to cite a paper with or without brackets?

How to cite a paper with brackets over the years in the body of an article? Thanks for any help！

\documentclass[12pt,a4paper]{article}
\usepackage{microtype}
\usepackage{sectsty}
\allsectionsfont{\centering}
\usepackage{indentfirst,amsmath,multicol,amssymb,booktabs}
\usepackage{setspace}
\usepackage{bm}
\usepackage{geometry}
\usepackage[sort]{natbib}
\setlength{\bibsep}{2pt}
\geometry{top=1.4in,bottom=1.in,left=1in,right=1in}
\usepackage{grffile}
\usepackage{epstopdf}
\usepackage[svgnames]{xcolor}
\usepackage{wallpaper}
\onehalfspacing
\begin{document}
\citealp{Gil}
(\citealp{Gil})
\bibliographystyle{chicago}
\bibliography{pa}
\end{document}


• Maybe try \citet{jon90}? – user36296 Jul 7 '17 at 12:54
• Check the journal you want to publish in, or book series. If you are self publishing, do whichever you like; they both like fine to me. – Benjamin McKay Jul 7 '17 at 12:56
• Yes, I just find it helps. – Carl Jul 7 '17 at 12:56
• @ChYh Can you go back to your previous questions and look if the answers solve your problems and accept them, if they do? Up to now you did not accept a single answer. – user36296 Jul 7 '17 at 13:03

Not sure if I understood your questions correctly, but if you want parenthesis around the year, you can use \citet{}

\documentclass[12pt,a4paper]{article}
\usepackage{microtype}
\usepackage{sectsty}
\allsectionsfont{\centering}
\usepackage{indentfirst,amsmath,multicol,amssymb,booktabs}
\usepackage{setspace}
\usepackage{bm}
\usepackage{geometry}
\usepackage[sort]{natbib}
\setlength{\bibsep}{2pt}
\geometry{top=1.4in,bottom=1.in,left=1in,right=1in}
\usepackage{grffile}
\usepackage{epstopdf}
\usepackage[svgnames]{xcolor}
\usepackage{wallpaper}