Christopherson, Robert W. & Hobbs, Gail Lewis Applied Physical Geography: Geosystems in the Laboratory By Robert W. Christopherson & Gail Lewis Hobbs - Second Edition - Prentice-Hall, Inc. 1998 - vii, 292 pages, 28 cm. includes glossary ISBN: 0-13-505405-2 Dewey Class. No.: 551.072 C46 1998