APA (7th ed.) Citation

Levine, J. R. (2004). Qmail. O' Reilly.

Chicago Style (17th ed.) Citation

Levine, John R. Qmail. Beijing: O' Reilly, 2004.

MLA (8th ed.) Citation

Levine, John R. Qmail. O' Reilly, 2004.

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