Lua APA (7ú heag.)

KENNEDY, G. (2012). ELECTRONIC COMMUNICATION SYSTEMS. TMH.

Lua i Stíl Chicago (17ú heag.)

KENNEDY, GEORGE. ELECTRONIC COMMUNICATION SYSTEMS. DELHI: TMH, 2012.

Lua MLA (9ú heag.)

KENNEDY, GEORGE. ELECTRONIC COMMUNICATION SYSTEMS. TMH, 2012.

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