MLA
Hanby, Thomas. Thomas Hanby, Autobiographical Sketch, Liverpool, and Note to John Wesley. 1779. Pitts Theology Library, Box 4, Folder 30. https://digital.library.emory.edu/purl/883xsj3vg8-cor.
APA, 6th edition
Hanby, T. (1779). Thomas Hanby, autobiographical sketch, Liverpool, and note to John Wesley (Box 4, Folder 30) [Documents (object genre)]. Pitts Theology Library. https://digital.library.emory.edu/purl/883xsj3vg8-cor.
Chicago
Hanby, Thomas. “Thomas Hanby, Autobiographical Sketch, Liverpool, and Note to John Wesley.” Documents (object genre). Wesleyana Collection, 1779. Box 4, Folder 30. Pitts Theology Library. https://digital.library.emory.edu/purl/883xsj3vg8-cor.