"Fort Necessity : official map and guide."; "United States. National Park Service."; "Fort Necessity National Battlefield (Pa.)", "Fort Necessity National Battlefield (Pa.)--Maps."; "Battlefields--Pennsylvania.", "Battlefields--Pennsylvania--Maps."; "United States. National Park Service."; "undated"; "

Brochure.

"; ""; "P20321"; "pec"; "Battlefields--Pennsylvania.", "Fort Necessity National Battlefield (Pa.)--Maps.", "Fort Necessity National Battlefield (Pa.)", "Battlefields--Pennsylvania--Maps."; "14256"; .