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Agriculture in the Altiplano of Bolivia / prep. by H.G. Dion.
- 878.8
- FAO,
- 1950.
- Washington, DC :
-
Report of the inter-American meeting on livestock production convened jointly by the Food and agriculture organization of the United Nations and the Inter-American institute of agricultural sciences, and held at Turrialba, Costa Rica, 9-20 October 1950 / ed. by Ralph W. Phillips.
- 875
- FAO,
- 1950.
- Washington, DC :
-
Essential considerations in mechanization of farming / prep. by Allen Stuart Gordon.
- FAO,
- 1950.
- Washington, DC :