Simpson, J. G. The geology of the Mwembeshi River area explanation of degree sheet 1527, NE.quarter / J. G. Simpson. - Lusaka : Ministry of Labour and mines , 1962. - 29 p. ; 25 cm. Includes bibliographical references. Subjects--Topical Terms: Geology -- Zambia. Gov. Doc. Class. No.: G.ZAM S71 (08) 2/10