Roukes, Nicholas, Sculpture in plastics. - New York Watson-Guptill Publications 1969. - 175 p. illus. (part col.) 27 cm. Bibliography: p. 172. LCCN: 68012401 //r75 Subjects--Topical Terms: Plastic sculpture. LC Class. No.: NB1270.P5 / R6 Dewey Class. No.: 731.4