A Concise physical geography, by D. Q. Bowen [and others] - Amersham [Eng.] Hulton Educational Publications [1972] Bibliography: p. 321-322. ISBN: 0717505928 LCCN: 72190136 //r88 Nat. Bib. No.: B*** Subjects--Topical Terms: Physical geography. LC Class. No.: GB55 / .C73 Dewey Class. No.: 910/.02