GUPTA B.R. (2003). ELECTRICAL SCIENCE. SCHAND & CO.
Cita Chicago (17th ed.)GUPTA B.R. ELECTRICAL SCIENCE. NEW DELHI: SCHAND & CO, 2003.
Cita MLA (9th ed.)GUPTA B.R. ELECTRICAL SCIENCE. SCHAND & CO, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.