Van Amerongen, C. The universal encyclopedia of machines : How things work / by C. van Amerongen. - Londo: Allen & Unwin, 1968. - 590 p. illus. (some col.) 22 cm. 1 0 0 ISBN: Source: 78-310 Subjects--Topical Terms: Technology--Popular works. LC Class. No.: T47 / .V35 1968