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  1. Effectiveness of orchard heaters /
    By: Kepner, Robert Allen,
    Publication info: Berkeley, Cal. :California Agricultural Experiment Station, The College of Agriculture, University of California,1951.
    Contributed by: University of California, Davis Libraries (archive.org)
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  2. Operation of orchard heaters /
    By: Kepner, Robert Allen,
    Publication info: Berkeley, Cal. :Agricultural Experiment Station,1940.
    Contributed by: University of California, Davis Libraries (archive.org)
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  3. The principles of orchard heating /
    By: Kepner, Robert Allen,
    Publication info: Berkeley, Calif. :University of California, College of Agriculture, Agricultural Experiment Station,1950.
    Contributed by: University of California, Davis Libraries (archive.org)
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