Cita APA (7a ed.)

Grigonis, R. (2000). Computer telephony encyclopedia. CMP Books.

Cita Chicago Style (17a ed.)

Grigonis, Richard. Computer Telephony Encyclopedia. New York ; Berkeley, California: CMP Books, 2000.

Cita MLA (9a ed.)

Grigonis, Richard. Computer Telephony Encyclopedia. CMP Books, 2000.