\documentclass{book}

\usepackage{multicol}

\begin{document}

\begin{multicols}{2}{
Department of English\\
P.O. Box 117310\\
University of Florida\\
Gainesville, FL, 32611-7310\\
(352) 392-6650

111 My Home address\\
Gainesville, FL 32611\\
(352) 555-1111 (H)\\
(352) 555-2222 (M)
}
\end{multicols}

\end{document}