TY  - BOOK
ED  - Yearbook of Agriculture.
ED  - E.U.A. Department of Agriculture.
TI  - Land
U1  - 630.5 
PY  - 1958///
CY  - Washington
PB  - Government Printing Office
KW  - Tierras
KW  - Aprovechamiento
KW  - E.U.A
ER  -