Ghosh, Ahindra Principles of extractive metallurgy/ Ahindra Ghosh and Hem Shanker Ray - 2nd ed. - New Delhi: New age intrnational, 1991. - xx, 302 p. : ill. Includes bibliographical references and index ISBN: 8122403220 Subjects--Topical Terms: Metallurgy LC Class. No.: TN 665 GHO 1991