APA (7th ed.) Citation

Rhoton, J. (1997). X.400 and SMTP: Battle of the E-Mail protocols. Digital Press.

Chicago Style (17th ed.) Citation

Rhoton, John. X.400 and SMTP: Battle of the E-Mail Protocols. Boston: Digital Press, 1997.

MLA (9th ed.) Citation

Rhoton, John. X.400 and SMTP: Battle of the E-Mail Protocols. Digital Press, 1997.

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