How things work.
How things work.
- Alexandria, Va : Time-Life Books, c1989.
- A Child's first library of learning .
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
Technology--Juvenile literature.
REF 620 / Ch43 1989
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
Technology--Juvenile literature.
REF 620 / Ch43 1989