Ernst, W. G. 1931- Earth materials [electronic resource] / [by] W. G. Ernst.. — Englewood Cliffs, N.J., : Prentice-Hall, [1969]. — viii, 149 p. : illus. 24 cm. — (Foundations of earth science series). Bibliography: p. 143-144. LCCN: 69011168 Subjects--Topical Terms: Mineralogy.Geochemistry.Petrology. LC Class. No.: QE364 / .E72 Dewey Class. No.: 552