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john t shields
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Appraisal of fertilizer markets & distribution systems in Central America ; with emphasis on small farmers
John T. Shields · National Fertilizer Development Center, Tennessee Valley Authority
114 sayfa · 1975
Kategori yok
Review & analysis of the fertilizer situation in Latin America
John T. Shields · National Fertilizer Development Center, Tennessee Valley Authority
99 sayfa · 1974
Fertilizer industry
The fertilizer industry in the Philippines
John T. Shields, Robert C. Gray, United States. Agency for International Development, United States. Presidential Fertilizer Commission, National Fertilizer Development Center (U.S.) · National Fertilizer Development Center, Tennessee Valley Authority
72 sayfa · 1971
Fertilizer industry