TY  - BOOK
ED  - Yearbook of Agriculture.
ED  - E.U.A. Department of Agriculture.
TI  - Power to produce
U1  - 630.5 
PY  - 1960///
CY  - Washington, D.C.
PB  - Department of Agriculture
KW  - Electricidad en agricultura
KW  - Maquinaria agrícola
ER  -