Sachdeva, S. K. Vikas encyclopaedia of general knowledge : [for IAS assistant Grade NDA, combined defence services, state bank officers and banking officers' examinations] / S. K. Sachdeva. - 4th ed. - New Delhi : Vikas Publishing, 1978. - xx, 610 p. ; 22 cm. 300 300 ISBN: 0 7069 0420 6 Subjects--Topical Terms: Encyclopedias and dictionaries. Dewey Class. No.: 030 / S1v