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1953 Crop Variety Comparisons
(North Dakota State University, 1954)
North Dakota Grain Variety Descriptions
(North Dakota State University, 1980)
Crop Variety Recommendations for North Dakota 1957
(North Dakota State University, 1957)
1956 Crop Variety Recommendations for North Dakota
(North Dakota State University, 1956)
1980 North Dakota Grain Varieties
(North Dakota State University, 1979)