APA (7th ed.) Citation

Proakis, J. G. (1990). Digital communications (2. ed., 3. print.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Proakis, John G. Digital Communications. 2. ed., 3. print. New York [u.a.]: McGraw-Hill, 1990.

MLA (9th ed.) Citation

Proakis, John G. Digital Communications. 2. ed., 3. print. McGraw-Hill, 1990.