\begin{filecontents*}{\jobname.bib} @book {MR1810041, AUTHOR = {Ash, Robert B.}, TITLE = {Probability and Measure Theory}, EDITION = {Second}, NOTE = {With contributions by Catherine Dol{\'e}ans-Dade}, PUBLISHER = {Harcourt/Academic Press, Burlington, MA}, YEAR = {2000}, PAGES = {xii+516}, ISBN = {0-12-065202-1}, MRCLASS = {28-01 (60-01)}, MRNUMBER = {1810041}, } @article {MR1034353, AUTHOR = {Hungerford, Thomas W.}, TITLE = {A counterexample in {G}alois theory}, JOURNAL = {Amer. Math. Monthly}, FJOURNAL = {American Mathematical Monthly}, VOLUME = {97}, YEAR = {1990}, NUMBER = {1}, PAGES = {54--57}, ISSN = {0002-9890}, MRCLASS = {12F10}, MRNUMBER = {1034353}, URL = {https://doi.org/10.2307/2324007}, } @book {n97, AUTHOR = {Norris, J. R.}, TITLE = {Markov Chains}, PUBLISHER = {Cambridge University Press}, YEAR = {1997}, DOI = {10.1017/CBO9780511810633}, } @book {ds14, AUTHOR = {Stroock, Daniel W.}, TITLE = {An Introduction to Markov Processes}, PUBLISHER = {Springer, Berlin, Heidelberg}, EDITION = {Second}, YEAR = {2014}, ISBN = {978-3642405228}, PAGES = {IX+275}, DOI = {10.1007/978-3-642-40523-5}, } \end{filecontents*} \documentclass[12pt,openany,letterpaper]{book} \usepackage[T1]{fontenc} \usepackage[round,sort,comma]{natbib} \newcounter{bibcount} \usepackage{color} \usepackage[english]{babel} \usepackage[autostyle, english = american]{csquotes} \usepackage{hyperref}% url is already loaded by hyperref, that should be % loaded as (almos) last package \newcommand{\red}{\color[rgb]{1,0,0}} \hypersetup{,colorlinks=true,allcolors=red} \setlength\bibindent{10cm} \makeatletter \patchcmd{\@lbibitem}% {\item[}% {\item[\hfill\stepcounter{bibcount}{[\thebibcount]}}% {}% {} \patchcmd{\@lbibitem}% {\hfil \NAT@anchor {#2}{\NAT@num }]}% {\hyper@natanchorstart{#2\@extra@b@citeb}\hyper@natanchorend]}% only hyper anchor generation {} {} \setlength{\bibhang}{2.00\parindent} \renewcommand\NAT@bibsetup[1]{% \setlength{\leftmargin}{\bibhang}% \setlength{\itemindent}{-\parindent}% \setlength{\itemsep}{\bibsep}% \setlength{\parsep}{\z@}} \makeatother \bibliographystyle{unsrtnat} \begin{document} \begin{titlepage}\centering% use titlepage for title pages \vspace*{\fill} {\LARGE {\bfseries Title Page} \\[20pt]% \bf is deprecated } {\LARGE {\scshape Spring 2020}% \sc is deprecated \par% End paragraph before end of \LARGE } \vspace{5cm} {\LARGE {\LaTeX} Note \par% End paragraph before end of \LARGE } \vspace{5cm} {\LARGE {\em COVID--19} \par% End paragraph before end of \LARGE } \vspace*{\fill} \end{titlepage} \chapter{First Chapter} \section{Section 1} Markov Chains \cite{n97} \section{Section 2} A graduate text in Mathematics \cite{ds14} \chapter{Second Chapter} \section{Section 1} Probability and Measure Theory, \cite{MR1810041}. \chapter{Chapter 3} Algebra, \cite{MR1034353}. \clearpage \bibliography{\jobname} \end{document}