TY  - BOOK
AU  - Horton,Casey
AU  - Rush,Ken
TI  - The amazing fact book of machines
T2  - Amazing fact books
AV  - TJ147 .H67 1980
U1  - 621.8 19
PY  - 1980///, c1979
CY  - Benicia, CA
PB  - A & P Books
KW  - Machinery
KW  - Juvenile literature
KW  - History
N2  - Pictures and text describe a small selection of the thousands of machines invented over the past 300 years
ER  -