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  1. Chemical investigations of the tobacco plant. I, A preliminary study of the non-volatile organic acids of tobacco leaves /
    By: Pucher, George W. - Vickery, Hubert Bradford,
    Publication info: [New Haven] :Connecticut Agricultural Experiment Station,1931.
    Contributed by: University of Connecticut Libraries (archive.org)
    Subjects: Composition  Organic acids  Tobacco  
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  2. A study of the non-volatile organic acids of Pennsylvania cigar-leaf tobacco a thesis by Seymour Stanton Block.
    By: Block, Seymour Stanton.
    Publication info: 1941.
    Contributed by: Penn State University (archive.org)
    Subjects: Organic acids  Pennsylvania  Tobacco  
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