APA-viite (7. p.)

COUCH LEON W. (2009). DIGITAL AND ANALOG COMMUNICATION SYSTEMS 7TH ED (7TH ED.). PEARSON EDUCATION.

Chicago-viite (17. p.)

COUCH LEON W. DIGITAL AND ANALOG COMMUNICATION SYSTEMS 7TH ED. 7TH ED. INDIA: PEARSON EDUCATION, 2009.

MLA-viite (9. p.)

COUCH LEON W. DIGITAL AND ANALOG COMMUNICATION SYSTEMS 7TH ED. 7TH ED. PEARSON EDUCATION, 2009.