Strahler, Arthur Newell, 1918- Elements of physical geography / Arthur N. Strahler, Alan H. Strahler. - New York : Wiley, c1976. - 469 p., [12] leaves of plates : ill. ; 26 cm. - 910/.02 . Includes index. ISBN: 0471831409 Subjects--Topical Terms: Physical geography. Dewey Class. No.: 910/.02