City of Washington [cartographic material].
MLA
Mitchell, S. Augustus (Samuel Augustus), 1792-1868. City of Washington [cartographic material].. 1847. https://collections.library.yale.edu/catalog/16388933.
APA, 6th edition
Mitchell, S. Augustus (Samuel Augustus), 1792-1868. (1847)[City of Washington [cartographic material].]. https://collections.library.yale.edu/catalog/16388933.