Strahler, Alan Physical geography : science and systems of the human environment / Alan Strahler and Arthur Strahler - 2nd ed. - New York : John Wiley & Sons, 2002. - xx, 748p. : ill. ; 25 cm. Includes index ISBN: 9971514133 Subjects--Topical Terms: Physical geography Dewey Class. No.: 910.02 STP