Zubin, Joseph, 1900- An experimental approach to projective techniques / Joseph Zubin, Leonard D. Eron and Florence Schumer. - New York : Wiley, c1965. - xix, 645 p. ; 24 cm. Includes bibliographies and index. Subjects--Topical Terms: Projective techniques. Dewey Class. No.: 137.84 / ZUE 1965