Boumphrey, Geoffrey. 1894-
Engines and how they work / Geoffrey Boumphrey and Pictures by S. J. Graham Browne. - New York, F. Watts c1960 - 255 p. ill.; 24 cm. - The Franklin Watts illustrated science books .
Includes index.
60010809
Mechanical engineering--Juvenile literature.
TJ147 / .B68
621.4 / BOE
Engines and how they work / Geoffrey Boumphrey and Pictures by S. J. Graham Browne. - New York, F. Watts c1960 - 255 p. ill.; 24 cm. - The Franklin Watts illustrated science books .
Includes index.
60010809
Mechanical engineering--Juvenile literature.
TJ147 / .B68
621.4 / BOE
