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Corn sampling and hand sieving procedures
(Oklahoma Cooperative Extension Service, 1985-08)
Wheat sampling and hand sieving procedures
(Oklahoma Cooperative Extension Service, 1985-08)
Sorghum sampling and hand sieving procedures
(Oklahoma Cooperative Extension Service, 1985-08)
Soybean sampling and hand sieving procedures
(Oklahoma Cooperative Extension Service, 1985-08)