Rosenqvist, Terkel. Principles of extractive metallurgy / Terkel Rosenqvist. - New York : McGraw-Hill, 1974. - xix, 546 p. : ill. - McGraw-Hill series in materials science and engineering . Includes bibliographies. ISBN: 0070528476 LCCN: 73004508 Subjects--Topical Terms: Metallurgy.