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Study of agricultural education, investigation and extension, 1965 : Ecuador / Inter-American committee of agricultural development ; in coop. with the United Nations program for development and the National planning board of Ecuador.
- 878.91
- Pan American union,
- 1967.
- Washington, DC :
-
Alliance for progress : official documents emanating from the special meeting of the Inter-American economic and social council at the ministerial level, held in Punta del Este, Uruguay from August 5 to 17, 1961
- 875
- Pan American union,
- 1967.
- Washington, DC :