APA (7th ed.) Citation

Costales, B., Jansen, G., Assmann, C., & Shapiro, G. (2004). sendmail 8.13 Companion (1st edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Costales, Bryan, George Jansen, Claus Assmann, and Gregory Shapiro. Sendmail 8.13 Companion. 1st edition. O'Reilly Media, Inc., 2004.

MLA (9th ed.) Citation

Costales, Bryan, et al. Sendmail 8.13 Companion. 1st edition. O'Reilly Media, Inc., 2004.