TY  - BOOK
AU  - Lafferty,Peter
TI  - FORCE & MOTION / 
T2  - eyewitness science
SN  - 863189067
U1  - J/531.6/LAF 
PY  - 1993///
CY  - London
PB  - A Dorling Kindersley Book
KW  - ENERGY
KW  - ناشئون كبار ( 15 - 18 سنة)
ER  -