Biodiversity Heritage Library · page-41659454
Downy mildew of tobacco — Illustration, Page 5
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BHL classifies this scanned page as Illustration. Publication: Downy mildew of tobacco. Publication creators (not identified as the page's illustrator): Clayton, Edward E.; Gaines, John G. (John Gordon), 1900-. Contributing institutions: U.S. Department of Agriculture, National Agricultural Library. Bibliographic metadata supplied by BHL under CC0; image rights are separate.
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1933. Downy mildew of tobacco — Illustration, Page 5. https://www.biodiversitylibrary.org/page/41659454
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