COTTON H. (2003). ELECTRICAL TECHNOLOGY (7TH ED.). CBS PUBLISHERS.
Cita Chicago (17th ed.)COTTON H. ELECTRICAL TECHNOLOGY. 7TH ED. NEW DELHI: CBS PUBLISHERS, 2003.
Cita MLA (9th ed.)COTTON H. ELECTRICAL TECHNOLOGY. 7TH ED. CBS PUBLISHERS, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.