GUPTA ,SANJEEVA. (1992). Electronics Communications Systems (4th ed.). McGraw Hill International Editions.
Cita Chicago (17th ed.)GUPTA ,SANJEEVA. Electronics Communications Systems. 4th ed. McGraw Hill International Editions, 1992.
Cita MLA (9th ed.)GUPTA ,SANJEEVA. Electronics Communications Systems. 4th ed. McGraw Hill International Editions, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.