Books by Milfred W. Richman:
Books in the extended shelves:
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Richman, Milfred W. (Milfred William), 1907-: Artificial radiation as a means of forcing greenhouse crops (Purdue University Agricultural Experiment Station, 1933), also by Robert Bruce Withrow (page images at HathiTrust)- Richman, Milfred W. (Milfred William), 1907-: The response of greenhouse crops to electric light supplementing daylight (Purdue University Agricultural Experiment Station, 1932), also by Laurenz Greene and Robert Bruce Withrow (page images at HathiTrust)
Find more by Milfred W. Richman at your library, or elsewhere.