Region
United States
6
Pennsylvania
4
États-Unis
2
Pennsylvanie
2
Philadelphia
2
Government policy
1
Lackawanna River Valley (Pa.)
1
Lehigh River Valley (Pa.)
1
Mexico
1
Michoacán de Ocampo
1
Michoacán de Ocampo (Mexico)
1
Philadelphia (Pa.)
1
Philadelphie
1
Pittsburgh
1
Pittsburgh (Pa.)
1
Pittsburgh Metropolitan Area
1
Pittsburgh Metropolitan Area (Pa.)
1