Ludman, Allan Physical geology : Allan Ludman - United States of America : McGraw-Hill, Inc. 1982 - xii, 383 p. : ill. ; 25 cm. Includes bibliographies and index. ISBN: 0534010342 LCCN: 81016291 Subjects--Topical Terms: Physical geology. LC Class. No.: QE28.2 / .A47 Dewey Class. No.: SHS 551 L96p 1982