Gilluly, James. Principles of geology / James Gilluly, A. C. Waters and A. O. Woodford. - 3rd ed. - London : W. H. Freeman, c 1968. - 687 p. : ill. ; 26 cm. - A series of book in geology ; . Includes index. 333 333 Subjects--Topical Terms: Geology. Dewey Class. No.: 550 / G419p