\documentclass[12pt,oneside,openany]{book}
\input{preamble}
\newcommand{\volumenumber}{II}
\hypersetup{pdftitle={Supersymmetric Analysis of a Random Band Matrix at Criticality, Volume II}}
\input{cross-volume-labels}
\begin{document}
\input{frontmatter}
\mainmatter
\setcounter{chapter}{6}
\setcounter{part}{2}
\input{contents}
\backmatter
\setlength{\bibsep}{3pt plus 1pt minus 1pt}
\input{references}
\end{document}