TY  - BOOK
AU  - Lafferty, Peter
TI  - Force & motion
T2  - Eyewitness science
SN  - 0863189067
PY  - 1993///
CY  - London: 
PB  - Dorling Kindersley, 
KW  - Force and energy
KW  - Mechanics
KW  - Dynamics
ER  -