Air-cooled apple storage houses
Magness, J. R. (John Robert), 1894-
United States. Bureau of Plant Industry.
[United States] :Bureau of Plant Industry,September 17, 1929.
"A radio talk by J. R. Magness, principal horticulturist, Bureau of Plant Industry, delivered through WRC and 31 other stations associated with the National Broadcasting Company, Friday, September 27, 1929, Eastern Standard Time."
NAL: 1.9 P69Ra 1929 Sept. 27
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