MLA
Wesley, Charles, D.D., 1793-1859. Letter from Charles Wesley D.D. to Sarah Wesley, London - [written between February 27, 1800 to February 27, 1819]. February 1800 to February 1819. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/757np5hqwk-cor.
APA, 6th edition
Wesley, Charles, D.D., 1793-1859. (February 1800 to February 1819)[Letter from Charles Wesley D.D. to Sarah Wesley, London - [written between February 27, 1800 to February 27, 1819]]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/757np5hqwk-cor.
Chicago
Wesley, Charles, D.D., 1793-1859, Letter from Charles Wesley D.D. to Sarah Wesley, London - [written between February 27, 1800 to February 27, 1819], February 1800 to February 1819, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/757np5hqwk-cor.