Cita APA (7th ed.)

Yarberry, W. A. (2003). Computer telephony integration (2nd ed.). Auerbach Publications.

Cita Chicago (17th ed.)

Yarberry, William A. Computer Telephony Integration. 2nd ed. Boca Raton, Fla: Auerbach Publications, 2003.

Cita MLA (8th ed.)

Yarberry, William A. Computer Telephony Integration. 2nd ed. Auerbach Publications, 2003.