Pearl, Richard M. 1913-1980. Geology / Richard M. Pearl. - 4th ed. - New York : Barnes & Noble, 1975. - xxv, 262 p. : illus. ; 21 cm. - College outline series ; 13 . Includes bibliography. Open access. LCCN: 6626803 Subjects--Topical Terms: Geology--Outlines, syllabi, etc.