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Farming and optimal resource utilization in Guyuan, China
Zhu, Feng-Shu, (1986)
[Rezension von: Brannon, Jeffery, ..., Agrarian reform & public enterprise in Mexico]
Rochin, Refugio I., (1988)
The adoption and effects of high-yielding wheats on unirrigated subsistence holdings in Pakistan
Rochin, Refugio I., (1976)