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  1. Compendium of natural features information /
    By: Maryland. - Smithsonian Institution.
    Publication info: Baltimore :The Department,1975.
    Contributed by: University of Maryland, College Park (archive.org)
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  2. Survey of the ecologically significant natural areas of the Chesapeake Bay Region /
    By: Jenkins, Dale W. - Smithsonian Institution.
    Publication info: [Washington, D.C.] :Smithsonian Center for Natural Areas, Ecology Program, Smithsonian Institution,[1973]
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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