TY  - BOOK
AU  - Nardo,Don
TI  - Gravity: the universal force 
T2  - The Encyclopedia of discovery and invention
SN  - 1560062045
AV  - QB341 .N35 1990
U1  - 531/.14 20
PY  - 1990///
CY  - San Diego, CA
PB  - Lucent Books
KW  - Gravity
KW  - Juvenile literature
KW  - Gravitation
N1  - Includes bibliographical references (p. 90) and index
N2  - Explains the force of gravity, including theories of gravity and its effects on human life
ER  -