Strahler, Arthur Newell, 1918- Introduction to physical geography [by] Arthur N. Strahler. - 3d ed. - New York, Wiley [1973] - viii, 468 p. illus. (part col.) 28 cm. ISBN: 0471831727 LCCN: 72008958 LC Class. No.: GB56 .S74 1973 / .S74 1973 Dewey Class. No.: 910/.02