Held, Richard, Perception: mechanisms and models; readings from Scientific American/ Richard Held and Whitman Richards. - San Francisco: W. H. Freeman, 1972. - 390 p.: ill.; 29 cm. Bibliography: p. [381]-386. ISBN: 0716708531 : 0716708523 (pbk.) LCCN: 70190437 Subjects--Topical Terms: Perception.Senses and sensation. LC Class. No.: QP441 / HEL 1972 Dewey Class. No.: 612/.8/08