MLA

John's Earnest Request, : or, Betty's Compassionate Love Extended to Him in Time of Distress. s.n., 0AD. https://collections.library.yale.edu/catalog/17124743.

APA, 6th edition

John's earnest request, : or, Betty's compassionate love extended to him in time of distress. (0 C.E.). [Single sheet verse, Broadside poems, Woodcuts England London 1760]. s.n. https://collections.library.yale.edu/catalog/17124743.