How things work.
- Alexandria, Va. : Time-Life Books, c1989.
- 87 p. : col. ill. ; 31 cm.
- A Child's first library of learning .
Ill. on lining papers.
Questions and answers provide information about how cameras, elevators, car engines, tops, yo-yos, and other devices work. Includes charts, diagrams, and an activities section.
0809448734 0809448742 (lib. bdg.)
89004535 /AC
Technology--Juvenile literature. Technology--Miscellanea. Questions and answers.