Correlations between annual precipitation and the yield of spring wheat in the Great Plains / by John S. Cole ; United States Department of Agriculture, Bureau of Plant Industry, in cooperation with the Agricultural Experiment Stations of Montana, North Dakota, Wyoming, Nebraska, Colorado, and Kansas.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Dept. of Agriculture,
1938.
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| Series: | Technical bulletin (United States. Department of Agriculture) ;
no. 636. |
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