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  1. An analytical key to some of the common flowering plants of the Rocky Mountain Region,
    By: Nelson, Aven,
    Publication info: New York,D. Appleton and Company,1902.
    Contributed by: Library of Congress
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  2. An analytical key to some of the common flowering plants of the Rocky Mountain region /
    By: Nelson, Aven,
    Publication info: New York :D. Appleton,1902.
    Contributed by: Cornell University Library
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  3. First report on the flora of Wyoming / Aven Nelson.
    By: Nelson, Aven,
    Publication info: Laramie :Wyoming Experiment Station,1896.
    Contributed by: Mertz Library, The New York Botanical Garden
    BHL Collections: New York Botanical Garden
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  4. New manual of botany of the central Rocky mountains (vascular plants)
    By: Coulter, John Merle, - Nelson, Aven,
    Publication info: Cincinnati [etc.]American Book Company[c1909]
    Contributed by: Cornell University Library
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  5. New manual of botany of the central Rocky mountains (vascular plants) by John M. Coulter, rev. by Aven Nelson.
    By: Coulter, John Merle, - Nelson, Aven,
    Publication info: Cincinnati [etc.]American book company[c1909]
    Contributed by: University of California Libraries (archive.org)
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  6. New manual of botany of the central Rocky Mountains, vascular plants / revised by Aven Nelson.
    By: Coulter, John Merle, - Nelson, Aven,
    Publication info: New York :American Book Co.,[c1909]
    Contributed by: Robarts - University of Toronto (archive.org)
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