Billings, Marland Pratt, 1902- Structural geology. - 2d ed. - New York, Prentice-Hall, 1954. - 514 p. illus. 24 cm. LCCN: 54008507 Subjects--Topical Terms: Geology, Structural.Geologia LC Class. No.: QE601 / .B5 1954 Dewey Class. No.: 551.8