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geo l holter
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Practical chemistry of soils and crops ; A study of the castor oil plant
Geo. L. Holter · Oklahoma Agricultural Experiment Station
15 sayfa · 1898
Castor oil plant / Crops and soils
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Yazar
1 cilt bulundu.
Geo. L. Holter · Oklahoma Agricultural Experiment Station
15 sayfa · 1898
Castor oil plant / Crops and soils