APA (7th ed.) Citation

St. Mary's Church, P. (1821). To Ambrose Marechall [sic] Archbishop of Baltimore. Philadelphia?.

Chicago Style (17th ed.) Citation

St. Mary's Church, Philadelphia. To Ambrose Marechall [sic] Archbishop of Baltimore. Philadelphia?, 1821.

MLA (8th ed.) Citation

St. Mary's Church, Philadelphia. To Ambrose Marechall [sic] Archbishop of Baltimore. Philadelphia?, 1821.

Warning: These citations may not always be 100% accurate.