Ray, Hem Shanker, 1940- The extraction of non-ferrous metals / H.S. Ray ; Abraham, K. P. and Sridhar, R.,. - New Delhi : Affiliated East-West Press, 1985. - x, 531 p. : ill. ; 25 cm. Includes bibliographical references. ISBN: 8185095639 Subjects--Topical Terms: 1.Nonferrous metals--Metallurgy Dewey Class. No.: 669.2 / RAY/H