TY  - BOOK
AU  - Relf,Patricia
AU  - LaPadula,Tom
TI  - Big work machines 
SN  - 0307118975
AV  - TJ147 .R45 1984
U1  - 621.8 19
PY  - 1984///
CY  - New York
PB  - Golden
KW  - Machinery
KW  - Juvenile literature
N1  - "A Golden book."
N2  - Text and illustrations introduce the big machines such as bulldozers, cranes, cement mixers, and combine harvesters which make man's life easier
ER  -