Lua APA (7ú heag.)

HALSALL FRED. (1989). DATA COMMUNICATIONS; COMPUTER NETWORKS AND OSI (2ND.). ADDISON-WESLEY.

Lua i Stíl Chicago (17ú heag.)

HALSALL FRED. DATA COMMUNICATIONS; COMPUTER NETWORKS AND OSI. 2ND. ENGLAND: ADDISON-WESLEY, 1989.

Lua MLA (9ú heag.)

HALSALL FRED. DATA COMMUNICATIONS; COMPUTER NETWORKS AND OSI. 2ND. ADDISON-WESLEY, 1989.

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