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The employment of a nonfumigant nematicide for control of the root-knot and lesion nematodes on yams and crop preservation in storage: Uso de un nematicida no fumigante para combat... por Badra, T., Steele, W.M., Caveness, F.E.

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Collection and conservation of the existing rice species and varieties of Africa por Sharma, S.D., Steele, W.M.

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