Cita APA (7th ed.)

Blake, R. (2008). Electronic communication systems (2nd ed.). Delmar/Thomson Learning.

Cita Chicago (17th ed.)

Blake, Roy. Electronic Communication Systems. 2nd ed. Australia: Delmar/Thomson Learning, 2008.

Cita MLA (9th ed.)

Blake, Roy. Electronic Communication Systems. 2nd ed. Delmar/Thomson Learning, 2008.