Cita APA (7th ed.)

Avolio, F. M., & Vixie, P. A. (1995). Sendmail: Theory and practice. Digital Press.

Cita Chicago (17th ed.)

Avolio, Frederick M., i Paul A. Vixie. Sendmail: Theory and Practice. Boston: Digital Press, 1995.

Cita MLA (9th ed.)

Avolio, Frederick M., i Paul A. Vixie. Sendmail: Theory and Practice. Digital Press, 1995.