MLA
Wesley, Charles, 1757-1834. Letter from Charles Wesley junior to "Dear Madam" [unaddressed], London - June 14, 1825. June 14, 1825. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/573bzkh1t4-cor.
APA, 6th edition
Wesley, Charles, 1757-1834. (June 14, 1825)[Letter from Charles Wesley junior to "Dear Madam" [unaddressed], London - June 14, 1825]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/573bzkh1t4-cor.
Chicago
Wesley, Charles, 1757-1834, Letter from Charles Wesley junior to "Dear Madam" [unaddressed], London - June 14, 1825, June 14, 1825, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/573bzkh1t4-cor.