Cita APA (7a ed.)

Roberts, S. (1999). Essential JTAPI, Java Telephony API: Design Telecom Projects with Java. Prentice Hall PTR.

Cita Chicago Style (17a ed.)

Roberts, Spencer. Essential JTAPI, Java Telephony API: Design Telecom Projects with Java. Upper Saddle River, NJ: Prentice Hall PTR, 1999.

Cita MLA (9a ed.)

Roberts, Spencer. Essential JTAPI, Java Telephony API: Design Telecom Projects with Java. Prentice Hall PTR, 1999.