Forgus, Ronald H. Perception a cognitive-stage approach Ronald H. Forgus [and] Lawrence E. Melamed - 2nd ed. - New York McGraw-Hill Book c1976 - xiv, 413 p. ill. 25 cm. - McGraw-Hill series in psychology . Includes bibliographical references and index ISBN: 0070216207 USD 13.95 Subjects--Topical Terms: Perception Dewey Class. No.: 152