Rao, Sunil S. Switchgear Protection and Power Systems (Theory, Practice and Solved Problems) - 13th ed. - Darya Ganj : New Delhi Khanna Publishers, c2014. - xxxviii, 1339 p. : 24 cm. Includes index. Includes bibliographical references. ISBN: 9788174092323 ISSN: 9788174092323 Dewey Class. No.: 621.3191 / R215s 2014