Sheldon, William Herbert, 1899-1977. The varieties of temperament : a psychology of constitutional differences / by William Sheldon with S. S. Stevens. - New York : Hafner Pub. Co., c1942. - x, 514 p. : ill. ; 24 cm. - His Human constitution series, 2 . Includes Index Subjects--Topical Terms: Temperament.Difference (Psychology) Dewey Class. No.: 155.264 / SHV 1942