TY  - BOOK
AU  - Greenberger,Robert
TI  - How do we know the nature of energy
SN  - 9781404200760
AV  - QC 73.4 .G74 2005
U1  - HS 531.6  
PY  - 2005///
CY  - New York
PB  - Rosen Pub. Group
KW  - Force and energy
KW  - Juvenile literature
KW  - Power (Mechanics)
UR  - http://www.loc.gov/catdir/toc/ecip0411/2003024748.html
ER  -