Topographic map of Mesa Verde National Park, Montezuma County, Colorado.
MLA
Geological Survey (U.S.). Topographic map of Mesa Verde National Park, Montezuma County, Colorado.. BRBL_00589. 1915. https://collections.library.yale.edu/catalog/15818443.
APA, 6th edition
Geological Survey (U.S.). (["BRBL_00589"])(1915)[Topographic map of Mesa Verde National Park, Montezuma County, Colorado.]. https://collections.library.yale.edu/catalog/15818443.