Gupta, S. L., Kumar, V., and Singh, S. P. Electrodynamics : Electricity and Magnetism - Meerut (U.P.) Pragati Prakashan 1992 - 520 ISBN: EE1669 Publisher. No.: Gangarams Book Bureau Subjects--Personal Names: Physics Subjects--Topical Terms: Physics Dewey Class. No.: 537.6 GUP