APA-čujuhus (7. p.)
Hersent, O. (2010). IP telephony: Deploying VoIP protocols and IMS infrastructure (2nd ed.). John Wiley.
Chicago-čujuhus (17. p.)
Hersent, Olivier. IP Telephony: Deploying VoIP Protocols and IMS Infrastructure. 2nd ed. Hoboken, NJ: John Wiley, 2010.
MLA-čujuhus (9. p.)
Hersent, Olivier. IP Telephony: Deploying VoIP Protocols and IMS Infrastructure. 2nd ed. John Wiley, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.