Du Bois, Philippe Goibaud, 1626-1694. An introduction to psychological statistics / by Philip H. Du Bois. - New York : Harper & Row, 1965. - xi, 530 p. : illus. ; 25 cm. Includes bibliographies. and Index Subjects--Topical Terms: Psychometrics. Dewey Class. No.: 152.8 / DUI 1965