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yao chi lu
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Cilt sonuçları
Technological innovation and productivity growth in U.S. agriculture
Yao-chi Lu · United States Department of Agriculture, Science and Education Administration
39 sayfa · 1980
Kategori yok
Agricultural productivity
Yao-chi Lu · Dept. of Agriculture, Economics, Statistics, and Cooperatives Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
11 sayfa · 1979
Agricultural productivity
Prospects for productivity growth in U.S. agriculture
Yao-chi Lu · Dept. of Agriculture, Economics, Statistics, and Cooperatives Service
87 sayfa · 1979
Agriculture / Agricultural productivity