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  1. A dairy laboratory guide,
    By: Ross, Harold Ellis.
    Publication info: New York,Orange Judd company,1914.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  2. Laboratory guide in market milk,
    By: Ross, Harold Ellis.
    Publication info: Ithaca, N.Y.,Carpenter & co.,1915.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
    View Book
  3. Laboratory guide in market milk,
    By: Ross, Harold Ellis.
    Publication info: Ithaca, N.Y.,Carpenter & co.,1915.
    Contributed by: University of California Libraries (archive.org)
    View Book