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MLA

Von Steen, Donald H. "Optimum Allocation of Winter Wheat Samples In the Western Two-thirds of Kansas." ,

APA

Von Steen, D. H. (0000). Optimum allocation of winter wheat samples in the western two-thirds of Kansas.

Chicago

Von Steen, Donald H. "Optimum allocation of winter wheat samples in the western two-thirds of Kansas" (1970):