APA (7th ed.) Citation

Couch, L. W. I., & Griffin, J. (1993). Digital and analog communication systems (4th ed.). Macmillan Publishers.

Chicago Style (17th ed.) Citation

Couch, Leon W. Ii, and J. Griffin. Digital and Analog Communication Systems. 4th ed. New York: Macmillan Publishers, 1993.

MLA (9th ed.) Citation

Couch, Leon W. Ii, and J. Griffin. Digital and Analog Communication Systems. 4th ed. Macmillan Publishers, 1993.