TY  - BOOK
AU  - Ellis,L.W.
TI  - A study of farm equipment in Ohio
T2  - U. S. Dept. of agriculture. Bureau of plant industry. Bulletin
AV  - QK1 .U45 no. 212
PY  - 1911///
CY  - Washington
PB  - Govt. print. off.
KW  - Farm
KW  - management
ER  -