Cozby, Paul C. Research methods in human development / Paul C. Cozby, Patricia E. Worden and Daniel W. Kee. - Mountain View, Calif. : Mayfield Pub. Co., c1989. - xii, 270 pages : illustrations ; 25 cm. Includes bibliographical references and index. ISBN: 0874847885 Subjects--Topical Terms: Social sciences--Research--Methodology. Dewey Class. No.: 300.72 COZ