MLA
Wesley, Charles, 1707-1788. Letter from Charles Wesley to John Bennet - March 2, 1750. circa March 2, 1750. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/27312jm6n1-cor.
APA, 6th edition
Wesley, Charles, 1707-1788. (circa March 2, 1750)[Letter from Charles Wesley to John Bennet - March 2, 1750]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/27312jm6n1-cor.
Chicago
Wesley, Charles, 1707-1788, Letter from Charles Wesley to John Bennet - March 2, 1750, circa March 2, 1750, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/27312jm6n1-cor.