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1Published 1998“...National Park Service, Denver Service Center,...”
Government Document Microform Book -
2Published 1998“...U.S. Dept. of the Interior, National Park Service,...”
Government Document Microform Book -
3Published 1998“...U.S. Dept. of the Interior, National Park Service,...”
Government Document Microform Book -
4by Jones, Bruce A.“...U.S. Dept. of the Interior, National Park Service, Midwest Archeological Center,...”
Published 1993
Government Document Microform Book