Cita APA (7a ed.)

Frenzel, L. E. (2003). Principles of electronic communication systems (2nd ed.). McGraw-Hill [etc.].

Cita Chicago Style (17a ed.)

Frenzel, Louis E. Principles of Electronic Communication Systems. 2nd ed. New York [etc.]: McGraw-Hill [etc.], 2003.

Cita MLA (9a ed.)

Frenzel, Louis E. Principles of Electronic Communication Systems. 2nd ed. McGraw-Hill [etc.], 2003.