Strahler, Alan H. Physical geography : science and systems of the human environment / Alan Strahler, Arthur Strahler. - New York : John Wiley, c1997. - xvi, 637 p. : col. ill., col. maps ; 29 cm. Includes index. ISBN: 0471112992 (cloth : acid-free paper) LCCN: 96018934 Subjects--Topical Terms: Physical geography. LC Class. No.: GB54.5 / .S784 1997 Dewey Class. No.: 910/.02