Cita APA (7th ed.)

BLAKE ROY. (2011). ELECTRONIC COMMUNICATION SYSTEMS (2ND ED.). CENGAGE LEARNING.

Cita Chicago (17th ed.)

BLAKE ROY. ELECTRONIC COMMUNICATION SYSTEMS. 2ND ED. ANDOVER: CENGAGE LEARNING, 2011.

Cita MLA (9th ed.)

BLAKE ROY. ELECTRONIC COMMUNICATION SYSTEMS. 2ND ED. CENGAGE LEARNING, 2011.