APA استشهاد

Couch, L. W. (2001). Digital and analog communication system (6th ed.). Pearson Education.

استشهاد بنمط شيكاغو

Couch, Leon W. Digital and Analog Communication System. 6th ed. New Delhi: Pearson Education, 2001.

MLA استشهاد

Couch, Leon W. Digital and Analog Communication System. 6th ed. Pearson Education, 2001.