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Agriculture, environment, and health: : sustainable development in the 21st century; [based on papers presented at a conference held in Bellagio, Italy, in October 1991]
Ruttan, Vernon W., (1994)
Metodologie per la programmazione in agicoltura
Giacomini, Corrado, (1993)
The economics of agriculture
Capstick, Margaret, (1970)
Land utilization and the farm problem
Gray, L. C ., (1930)
Introduction to agricultural economics
Gray, L. C ., (1924)