Frenzel, L. E. Communication electronics: Principles and applications (3rd ed.).
Cita Chicago (17th ed.)Frenzel, Louis E. Communication Electronics: Principles and Applications. 3rd ed.
Cita MLA (9th ed.)Frenzel, Louis E. Communication Electronics: Principles and Applications. 3rd ed.
Atenció: Aquestes cites poden no estar 100% correctes.