Lua APA (7ú heag.)

SMITH JACK. (1986). MODERN COMMUNICATION CIRCUITS. MCGRAW HILL.

Lua i Stíl Chicago (17ú heag.)

SMITH JACK. MODERN COMMUNICATION CIRCUITS. NEW YORK: MCGRAW HILL, 1986.

Lua MLA (9ú heag.)

SMITH JACK. MODERN COMMUNICATION CIRCUITS. MCGRAW HILL, 1986.

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