APA (7th ed.) Citation

Brigham, D. R. (2023). Two hundred years: The Historical Society of Pennsylvania, 1824-2024. Historical Society of Pennsylvania.

Chicago Style (17th ed.) Citation

Brigham, David R. Two Hundred Years: The Historical Society of Pennsylvania, 1824-2024. Philadelphia: Historical Society of Pennsylvania, 2023.

MLA (9th ed.) Citation

Brigham, David R. Two Hundred Years: The Historical Society of Pennsylvania, 1824-2024. Historical Society of Pennsylvania, 2023.