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close this section of the libraryVan Den Brink, Ceel, 1921- 4n(1)
View the documentVan Den Brink, Ceel, 1921- 4n; Growing degree days in Michigan / by C. Van Den Brink, N.D. Strommen, and A.L. Kenworthy. East Lansing : Michigan State University, Agricultural Experiment Station, 1971.