Biodiversity Heritage Library
By "Smithsonian Institution. Center for Natural Areas. "
Compendium of natural features information /
By: Maryland. State Planning Dept. - Smithsonian Institution. Center for Natural Areas.
Publication info: Baltimore :The Department,1975.
Holding Institution: University of Maryland, College Park (archive.org)
Survey of the ecologically significant natural areas of the Chesapeake Bay Region /
By: Jenkins, Dale W. - Smithsonian Institution. Center for Natural Areas.
Publication info: [Washington, D.C.] :Smithsonian Center for Natural Areas, Ecology Program, Smithsonian Institution,
Holding Institution: Smithsonian Libraries