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Agricultural development : an international perspective
Hayami, Yūjirō, (1971)
Transformacion de la agricultura tradicional de Mexico
Yukawa, Setsuko, (1976)
The development of agriculture in developing countries
Hopper, W. David, (1976)
An economic model for establishing priorities for agricultural research and a test for the Brazilian economy
Ramalho de Castro, Jose Prazeres, (1974)