Billings, Marland Pratt, 1902-1996. Structural geology / Marland Pratt Billings. - Second edition - 514 pages : illustrations ; 24 cm. LCCN: 54008507 Subjects--Topical Terms: Geology, Structural. LC Class. No.: QE601 / .B5 1954 Dewey Class. No.: 551.8