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e lloyd barber
2 cilt bulundu.
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Variability of wheat yields by counties in the United States
E. Lloyd Barber · United States Department of Agriculture, Agricultural Economics
74 sayfa · 1951
Wheat / Crop yields
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Yükleniyor
Yazar
2 cilt bulundu.
E. Lloyd Barber · United States Department of Agriculture, Agricultural Economics
74 sayfa · 1951
Wheat / Crop yields