How it works
By: by Martin L. Keen. Illustrated by Lloyd P. Birmingham.
Contributors: Birmingham, Lloyd, illus.; Kramer, Dick, illus.
Publisher: Grosset & Dunlap
Published: 1972
Place of publication: New York
Language: eng
Subjects: Technology -- Juvenile literature.; Technology.
Description: Explains in text and diagrams, the workings of such things as batteries, television, elevators, and ballpoint pens.
Notes: Vol. 2 illustrated by D. Kramer.