Universal encycopedia of machines or how things work; the theory and pactice of modern machines and methods, from the ball-point pen to the jet engine, from the polaroid camera to radar, with <1071=one thousand seventyone> two-colour drawings and <6=six> pages of four-colour illustrations 

 - London  George Allen & Unwin Ltd.  1967 
 - 590p 
<br/><br/><label>Universal Decimal Class. No.: </label>621(03)  / GEO.67