Trewartha, Glenn Thomas, 1896- Fundamentals of physical geography / ( by) Glenn T. Trewartha, Arthur H. Robinson and Edwin H. Hammond. - New York : McGraw-Hill, 1961 - xii, 384 p. : ill. (part col.), maps (part col.) ; 24 cm. Includes bibliographies LCCN: 61-8661 Subjects--Topical Terms: Physical geography