Lua APA (7ú heag.)

SHEPARD STEVEN. (2000). TELECOMMUNICATIONS CONVERGENCE. NEW YORK.

Lua i Stíl Chicago (17ú heag.)

SHEPARD STEVEN. TELECOMMUNICATIONS CONVERGENCE. MCGRAW-HILL: NEW YORK, 2000.

Lua MLA (9ú heag.)

SHEPARD STEVEN. TELECOMMUNICATIONS CONVERGENCE. NEW YORK, 2000.

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