Trewartha, Glenn T. . Fundamentals of Physical Geography / Textual Documents Glenn T. Trewartha, A.H. Robinson & Edwin H. Hammond. - 1st ed. / - New York : McGraw - Hill book Company , C 1961. - 409p. ; 24cm. Subjects--Index Terms: Geography-Physical Physical Geography G-Geography Dewey Class. No.: 910 / T 729 F