Παραπομπή APA

Couch, L. W. (1994). Modern communuication systems. (1st.). Prentic hall.

Παραπομπή Chicago Style

Couch, Leon W. Modern Communuication Systems. 1st. N.Jersey: Prentic hall, 1994.

Παραπομπή MLA

Couch, Leon W. Modern Communuication Systems. 1st. Prentic hall, 1994.