Christopherson, Robert W. Elementary geosystems : a foundation in physical geography / Robert W. Christopherson. - N. J. : Prentice Hall, c1995. - xxv, 580p. : col. ill. ; 26 cm Glossary : p. G1 - G19. Includes bibliographical references and index. ISBN: 0023224614 Subjects--Topical Terms: Physical geography LC Class. No.: GB54.5 / C46 1995