APA (7th ed.) Citation

VanValkenburgh Jason, Steven Anthony, & Grote Patrick. (1999). Sams teach yourself Microsoft Exchange Server 5.5 in 21 days. SAMS.

Chicago Style (17th ed.) Citation

VanValkenburgh Jason, Steven Anthony, and Grote Patrick. Sams Teach Yourself Microsoft Exchange Server 5.5 in 21 Days. SAMS, 1999.

MLA (8th ed.) Citation

VanValkenburgh Jason, et al. Sams Teach Yourself Microsoft Exchange Server 5.5 in 21 Days. SAMS, 1999.

Warning: These citations may not always be 100% accurate.