Cita APA (7th ed.)
Singh, R. P., & Sapre, R. (2002). Communication systems: Analog and digital. Tata McGraw-Hill.
Cita Chicago (17th ed.)
Singh, R. P., i R.D Sapre. Communication Systems: Analog and Digital. New Delhi: Tata McGraw-Hill, 2002.
Cita MLA (9th ed.)
Singh, R. P., i R.D Sapre. Communication Systems: Analog and Digital. Tata McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.