Ojakangas, Richard W. Schaum's outline of theory and problems of introductory geology / Richard W. Ojakangas. - New York : McGraw-Hill Pub. Co., 1991. - vii, 294 p. : ill., maps ; 28 cm. - Schaum's outline series . Includes index. ISBN: 0070477043 : $10.95 LCCN: 89077819 Subjects--Topical Terms: GeologyGeology--Outlines syllabi etc LC Class. No.: QE41 Dewey Class. No.: 550/.2/02