TY  - BOOK
AU  - Berne, Emma C.
TI  - Speeding!: Mechanical energy 
SN  - 978-1-4488-9760-5
U1  - 531.11 B525 c2013. 
CY  - New York
PB  - The Rosen Pub.
KW  - Power (Mechanics)- Juvenile literature
KW  - Motion- Juvenile literature
KW  - Force and energy- Juvenile literature
ER  -