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Producción e industria del arroz de Colombia
Varela Martinez, Raúl, (1951)
Rice economy of India
(1961)
Distribution of rice in the United States, 1966-67
Eiland, J. C., (1969)
Agricultural change in Ruanda-Urundi, 1945-1960
Leurquin, Philippe P., (1963)
Agricultural Change in Ruanda-Urundi: 1945-1960
Rice in Colombia: A Case Study in Agricultural Development
Leurquin, Philippe P., (1967)