APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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