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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)
    Subjects: Maryland  Natural areas  Natural monuments  Natural resources  
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  2. Inland wetlands of the United States : evaluated as potential registered natural landmarks / Richard H. Goodwin, William A. Niering.
    By: Goodwin, Richard H. - Niering, William A.
    Publication info: [Washington] :National Park Service : may be purchased from the Supt. of Docs., Govt. Print. Off.,1975.
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Natural monuments  United States  Wetlands  
    BHL Collections: MBLWHOI Library, Woods Hole
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  3. The University of Kansas Natural History Reservation /
    By: Fitch, Henry Sheldon,
    Publication info: Lawrence,University of Kansas, Museum of Natural History,1952
    Contributed by: Smithsonian Libraries
    Subjects: Kansas  Natural monuments  
    BHL Collections: Smithsonian Institution Libraries
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