TY  - BOOK
AU  - Cooper,M.R.
AU  - Barton,Glen T.
AU  - Brodell,Albert P.
TI  - Progress of farm mechanization
T2  - Miscellaneous publication / United States Department of Agriculture
AV  - S751 .C6
PY  - 1947///
CY  - Washington, D.C.
PB  - U.S. Dept. of Agriculture
KW  - Agriculture
KW  - United States
KW  - Agricultural machinery
KW  - Economic aspects
N1  - Contribution from Bureau of Agricultural Economics; Cover title
ER  -