Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.