TY  - BOOK
AU  - Heady, Earl O
AU  - Madsen, Howard C
AU  - Mayer, Leo V
TI  - Future farm programs
SN  - 813806755
CY  - Ames
KW  - Agricultural productivity
KW  - Agriculture- state - U S
KW  - Land retirement programmes
KW  - Linear programming
KW  - Resource requirments
KW  - Simulation methods
ER  -