TY  - BOOK
AU  - Simon,David
TI  - Pulleys and gears
T2  - How machines work
SN  - 9833671101
U1  - 428.6 23
PY  - 2006///
CY  - Triang : 
PB  - Kedai Buku SBY , 
KW  - Engineering
ER  -