MLA
Wesley, Sarah, 1759-1828. Letter from Sarah Wesley to Charles Wesley junior, Leyton - September 29, 1801. September 29, 1801. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/235gb5mm4v-cor.
APA, 6th edition
Wesley, Sarah, 1759-1828. (September 29, 1801)[Letter from Sarah Wesley to Charles Wesley junior, Leyton - September 29, 1801]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/235gb5mm4v-cor.
Chicago
Wesley, Sarah, 1759-1828, Letter from Sarah Wesley to Charles Wesley junior, Leyton - September 29, 1801, September 29, 1801, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/235gb5mm4v-cor.