Pittsburgh, Pennsylvania/Related Articles
From Citizendium, the Citizens' Compendium
- See also changes related to Pittsburgh, Pennsylvania, or pages that link to Pittsburgh, Pennsylvania or to this page or whose text .
- North America : The third largest continent; area 24,709,000 km² ; pop. 523,736,000 (est. July 2007)
- United States of America : Constitutional republic in North America, has major land borders with Mexico and Canada.
- Pennsylvania : One of the fifty states in the United States