APA (7th ed.) Citation

Schwartz, A. (2004). SpamAssassin. O' Reilly.

Chicago Style (17th ed.) Citation

Schwartz, Alan. SpamAssassin. Beijing: O' Reilly, 2004.

MLA (8th ed.) Citation

Schwartz, Alan. SpamAssassin. O' Reilly, 2004.

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