Cita APA (7th ed.)

Singh R.P & Sapre S.D. (2017). Communication Systems: Analog And Digital (3th.). Mc Graw Hill Education (India)Pvt.Ltd.

Cita Chicago (17th ed.)

Singh R.P i Sapre S.D. Communication Systems: Analog And Digital. 3th. Chennai: Mc Graw Hill Education (India)Pvt.Ltd, 2017.

Cita MLA (9th ed.)

Singh R.P i Sapre S.D. Communication Systems: Analog And Digital. 3th. Mc Graw Hill Education (India)Pvt.Ltd, 2017.