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Management and regulation of the metropolitan New York City milk industry
(1969)
Equilibrium analysis of income-improving adjustments on farm in the lake states dairy region, 1965
(1963)
State and local governmental finances in the North Central States, 1964-65
Perkinson, Leon B., (1969)
Expertensysteme und ihre Anwendungen im landwirtschaftlichen Management
Doluschitz, Reiner, (1987)