APA (7th ed.) Citation

Costales, B., & Allman, E. (1997). Sendmail (Second revised and updated edition.). O'Reilly; Shroff Publishers & Distributors PVT.LTD..

Chicago Style (17th ed.) Citation

Costales, Bryan, and Eric Allman. Sendmail. Second revised and updated edition. Beijing ; Sebastopol, CA : Mumbai ; Calcutta: O'Reilly; Shroff Publishers & Distributors PVT.LTD., 1997.

MLA (8th ed.) Citation

Costales, Bryan, and Eric Allman. Sendmail. Second revised and updated edition. O'Reilly; Shroff Publishers & Distributors PVT.LTD., 1997.