TY - BOOK AU - Simon,David TI - Wheels and cranks T2 - How Machines Work SN - 9833671144 U1 - 621.8 PY - 2006/// CY - Triang, Pahang PB - Kedai Buku SBY KW - Wheels KW - Juvenile literature KW - Cranks and crankshafts ER -