This is my code
\documentclass{article}
\usepackage[round,authoryear,numbers]{natbib}
\bibliographystyle{plain}
\usepackage{lipsum}
\title{\bf Minimal Example}
\begin{document}
\maketitle
Here initial concepts and conditions are explained and
several hypothesis are mentioned in brief.
\citep*{allen}, \citep*{bruner} and \citep*{cox}
did the initial work in this area. But in Struss' work \citep{cox}
the definitive model is seen.
\begin{thebibliography}{9}
\bibitem[Allen, B.S.~(1985)]{allen}
{\bf Allen, B.S.} (1984). System-assigned learning strategies and CBI.
\emph{Journal of Instructional Computing Research},
\emph{1}(1), 3--18.
%\filbreak
\bibitem[Bruner, J.~(1960)]{bruner}
{\bf Bruner, J.}(1960). \emph{The process of education}.
New York: Random House.
%\filbreak
\bibitem[Cox, S.~R.~(1974)]{cox}
{\bf Cox, S.~R.}(1974). Computer-assisted instruction and student performance
in macroeconomic principles.
\emph{The Journal of Economic Education},
\emph{6}(1), 29--37.
%\filbreak
\end{thebibliography}
\end{document}
and its output is
I need to customize the bibliography style like below
How is it possible ?







.bstfiles are programmed, the usual answer is 'with some difficulty'. But it is impossible to even give good starting advice at this point. Without the minimal file cfr requested, it is unclear how you are generating your bibliography, what it looks like, and what elements need to change. We need at least a minimal.texfile and a.bibfile with those three entries in order to help. – jon Dec 24 '16 at 18:33\bibliographystyleetc. isn't really doing anything for you, as you're setting the bibliography by hand. Also, please don't use\bf. It is 20+ years obsolete in LaTeX. Try\bfseriesinstead. – cfr Jan 27 '17 at 17:43