MLA
Page, R., and H. Edridge. Engraving of "Revd. John Wesley". Robins, J., 1823. Pitts Theology Library, Box 40, Folder I95-001-179. https://digital.library.emory.edu/purl/4407wm3876-cor.
APA, 6th edition
Page, R., & Edridge, H. (1823). Engraving of "Revd. John Wesley" (Box 40, Folder I95-001-179) [Engravings (prints)]. Robins, J.; Pitts Theology Library. https://digital.library.emory.edu/purl/4407wm3876-cor.
Chicago
Page, R., and H. Edridge. “Engraving of ‘Revd. John Wesley.’” Engravings (prints). Wesleyana Collection. Robins, J., 1823. Box 40, Folder I95-001-179. Pitts Theology Library. https://digital.library.emory.edu/purl/4407wm3876-cor.