Principles of human geography / by Ellsworth Huntington Huntington, Ellsworth 1876-1947. Cushing, Sumner W., joint author. Human geography. GF31 .H82 1940 910 HUP Includes index. New York ; J. Wiley & sons, inc. ; London : Chapman & Hall, limited , c1940 . c1940 . 1940 Text xxiv, 594 p. : eng The Huntington geography series.