Theraja, B.L. Theraja, B.L. & Theraja, A.K. A Text Book of Electrical Technology Volume II - 1St Ed. - New Delhi S Chand & Company Ltd. 2012 - xiv, 1568 p. 20 cm. Text in English ISBN: 81-219-2437-5 Dewey Class. No.: 621.3 / THE