Cita APA (7a ed.)

Frenzel, L. E. (2008). Principles of electronic communication systems (3rd ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Frenzel, Louis E. Principles of Electronic Communication Systems. 3rd ed. Boston: McGraw-Hill, 2008.

Cita MLA (9a ed.)

Frenzel, Louis E. Principles of Electronic Communication Systems. 3rd ed. McGraw-Hill, 2008.