Weller, J. Marvin 1899-1976. Stratigraphic principles and practice. - New York, Harper [1960] - xvi, 725 p. illus. 24 cm. - Harper's geoscience series . - Harper's geoscience series. . Includes bibliographies. LCCN: 59013924 Subjects--Topical Terms: Geology, Stratigraphic. LC Class. No.: QE651 / .W35