GIL HELD. (2001). Voice & data internetworking (0 07 213183 7). McGraw-Hill.
Čikaški stil citiranjaGIL HELD. Voice & Data Internetworking (0 07 213183 7). McGraw-Hill, 2001.
MLA način citiranjaGIL HELD. Voice & Data Internetworking (0 07 213183 7). McGraw-Hill, 2001.
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