APA-čujuhus (7. p.)
Froehlich, A. G. (2011). CVOICE 8.0: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 : study guide. Wiley Pub., Inc..
Chicago-čujuhus (17. p.)
Froehlich, Andrew G. CVOICE 8.0: Implementing Cisco Unified Communications Voice over IP and QoS V8.0 : Study Guide. Indianapolis: Wiley Pub., Inc., 2011.
MLA-čujuhus (9. p.)
Froehlich, Andrew G. CVOICE 8.0: Implementing Cisco Unified Communications Voice over IP and QoS V8.0 : Study Guide. Wiley Pub., Inc., 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.