Graham, D. A. (2019). William Bird (1706-1761): Ironmaster of Berks County, Pennsylvania, a biographical sketch. [Pennsylvania]: Friends of Hopewell Furnace National Historic Site.
Chicago Style CitationGraham, Daniel A. William Bird (1706-1761): Ironmaster of Berks County, Pennsylvania, a Biographical Sketch. [Pennsylvania]: Friends of Hopewell Furnace National Historic Site, 2019.
MLA CitationGraham, Daniel A. William Bird (1706-1761): Ironmaster of Berks County, Pennsylvania, a Biographical Sketch. [Pennsylvania]: Friends of Hopewell Furnace National Historic Site, 2019.