TY  - BOOK
AU  - Berry, C.E.
TI  - How things work
T2  - Child's first library of learning
SN  - 0809448734
U1  - 000 
PY  - 1988///
CY  - Hong Kong
PB  - Time-Life Books
N2  - 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
ER  -