Davis, Robert L. Applied plastic product design : a simplified presentation of plastic product design principles for use by engineers and students in plastic / Robert L. Davis and Ronald D. Beck. - London : Chapman and Hall, Inc, c 1947. - xi, 508 p. ; 23 cm. Includes index. 338 338 Subjects--Topical Terms: Plastics. Dewey Class. No.: 668.4 / D297a