Elfassy, D. (2014). Mastering Exchange server 2013 (First edition.). Sybex.
芝加哥风格引文Elfassy, David. Mastering Exchange Server 2013. First edition. Indianapolis, Indiana: Sybex, 2014.
MLA引文Elfassy, David. Mastering Exchange Server 2013. First edition. Sybex, 2014.
警告：这些引文格式不一定是100％准确.