PARKAR. (1984). PROBLEMS IN ELECTRICAL ENGINEERING 9 TH EDI. CBS.
Cita Chicago (17th ed.)PARKAR. PROBLEMS IN ELECTRICAL ENGINEERING 9 TH EDI. NEW DELHI: CBS, 1984.
Cita MLA (9th ed.)PARKAR. PROBLEMS IN ELECTRICAL ENGINEERING 9 TH EDI. CBS, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.