How does it work?

Koff, Richard M.

How does it work? Illus. by the author and Richard E. Rooman. - [1st ed.] - Garden City, N.Y., Doubleday, 1961. - 288 p. illus. 25 cm.

61007761


Machinery.
Implements, utensils, etc.
Tools.
Electric apparatus and appliances.

TJ147 / .K6

621.9