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Performance of triticale varieties: Oklahoma 1977
(Oklahoma Cooperative Extension Service, 1977-10)
Performance of wheat varieties, Oklahoma 1977
(Oklahoma Cooperative Extension Service, 1977-08)
Performance of barley varieties: Oklahoma 1977
(Oklahoma Cooperative Extension Service, 1977-10)
Performance of oat varieties: Oklahoma 1977
(Oklahoma Cooperative Extension Service, 1977-10)