TY  - BOOK
AU  - George Allen & Unwin Ltd.
TI  - 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
PY  - 1967///
CY  - London
PB  - George Allen & Unwin Ltd.
ER  -