Baltimore-Washington Parkway, Prince George's County, Maryland [2007]

Chicago citation style
Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway. Eastern Federal Lands Highway Division. ca. 1987. Baltimore-Washington Parkway, Prince George's County, Maryland [2007]. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/20015924. (Accessed December 16, 2018.)
APA citation style
Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway. Eastern Federal Lands Highway Division. ca. 1987, Baltimore-Washington Parkway, Prince George's County, Maryland [2007]. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/20015924
MLA citation style
Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway. Eastern Federal Lands Highway Division. ca. 1987. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/20015924>.
Note: These citations are programmatically generated and may be incomplete.