MLA
Wesley, Sarah, 1759-1828. Letter from Sarah Wesley to John Wesley, Chesterfield Street, [London] - May 24, 1788. 1931. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/8945qfttz1-cor.
APA, 6th edition
Wesley, Sarah, 1759-1828. (1931)[Letter from Sarah Wesley to John Wesley, Chesterfield Street, [London] - May 24, 1788]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/8945qfttz1-cor.
Chicago
Wesley, Sarah, 1759-1828, Letter from Sarah Wesley to John Wesley, Chesterfield Street, [London] - May 24, 1788, 1931, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/8945qfttz1-cor.