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Characteristics and means of state income policy in agricultural production : fourth Finnish-Hungarian-Polish seminar; Csopak, Hungary, 1 - 5 September, 1980
Torvela, Matias, (1981)
Ėkonomičeskie interesy i stimuly v sel'skom chozjajstve : (metodologičeskij očerk)
Zinčenko, G. I., (1972)
Factor price and farm income interrelationships with implications for resource allocation and income distribution
Gaffney, Mason, (1965)