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- catalog contributor b6451198.
- catalog contributor b6451199.
- catalog contributor b6451200.
- catalog contributor b6451201.
- catalog created "1977.".
- catalog date "1977".
- catalog date "1977.".
- catalog dateCopyrighted "1977.".
- catalog extent "ix, 139 p.:".
- catalog isPartOf "NTIS ; N77-22003".
- catalog issued "1977".
- catalog issued "1977.".
- catalog language "eng".
- catalog publisher "Princeton, N.J.: ECON, Inc.; Springfield, Va.: National Technical Information Service,".
- catalog subject "Agriculture Economic aspects.".
- catalog subject "Agriculture Information services.".
- catalog subject "Crop yields Mathematical models.".
- catalog title "Economic benefits of improved information on worldwide crop production: An optimal decision model of production and distribution with application to wheat, corn, and soybeans / ECON, Inc.".
- catalog type "text".