APA (7th ed.) Citation

Couch, L. W. (1990). Digital and analog communication syistems. Macmillan.

Chicago Style (17th ed.) Citation

Couch, Leon W. Digital and Analog Communication Syistems. Macmillan, 1990.

MLA (8th ed.) Citation

Couch, Leon W. Digital and Analog Communication Syistems. Macmillan, 1990.

Warning: These citations may not always be 100% accurate.