Verstappen, H. Theodoor Applied geomorphology geomorphological surveys for environmental development H. Th. Verstappen - Amsterdam New York Elsevier Distributors for the U.S. and Canada, Elsevier Science Pub. Co. 1983 - xi, 437 p. ill. 31 cm. Subjects--Topical Terms: Geomorphology Dewey Class. No.: 551.4