Chassan, J. B. Research design in clinical psychology and psychiatry / [by] J. B. Chassan. - New York : Appleton-Century-Crofts, 1967 - xviii, 280 p.: ill.; 22 cm. - The Century psychology series . Includes bibliographies. LCCN: 67011441 Subjects--Topical Terms: Psychiatry--Research.Psychology--Research.Experimental design. Dewey Class. No.: 157.9072 / CHR 1967