Gupta , M. L. (1994). Electronic and radio engineering (9th rev. & enl.ed.). Dhanpat Rai.
Cita Chicago (17th ed.)Gupta , M. L. Electronic and Radio Engineering. 9th rev. & enl.ed. Delhi: Dhanpat Rai, 1994.
Cita MLA (9th ed.)Gupta , M. L. Electronic and Radio Engineering. 9th rev. & enl.ed. Dhanpat Rai, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.