MLA
Wesley, Sarah (Gwynne), 1726-1822. Letter from Sarah (Gwynne) Wesley to Samuel Wesley, Bath, including notes from [Sarah Wesley] and Charles Wesley junior - November 4, 1804. November 4, 1804. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/1848pk0pk2-cor.
APA, 6th edition
Wesley, Sarah (Gwynne), 1726-1822. (November 4, 1804)[Letter from Sarah (Gwynne) Wesley to Samuel Wesley, Bath, including notes from [Sarah Wesley] and Charles Wesley junior - November 4, 1804]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/1848pk0pk2-cor.
Chicago
Wesley, Sarah (Gwynne), 1726-1822, Letter from Sarah (Gwynne) Wesley to Samuel Wesley, Bath, including notes from [Sarah Wesley] and Charles Wesley junior - November 4, 1804, November 4, 1804, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/1848pk0pk2-cor.