SONI,GUPTA. (1989). ELECTRICAL POWER. DHANPAT RAI & SONS.
Cita Chicago (17th ed.)SONI,GUPTA. ELECTRICAL POWER. DELHI: DHANPAT RAI & SONS, 1989.
Cita MLA (9th ed.)SONI,GUPTA. ELECTRICAL POWER. DHANPAT RAI & SONS, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.