TY  - BOOK
AU  - Burnie,David
TI  - Machines and how they work
SN  - 1879431157
AV  - TJ147 
U1  - 621.8 
PY  - 1991///
CY  - New York
PB  - Dorling Kindersley
KW  - Simple machines
KW  - Juvenile literature
KW  - Machines
KW  - Machinery
KW  - sears
N1  - Accelerated Reader; School Library Journal; Wilson's Children's Catalog; Wilson's Junior High Catalog; 7.2; 4-7
N2  - An introduction to simple and complex machines
ER  -