MLA

The First Interview of Werter & Charlotte [Graphic]. Publish'd Octr. 16, 1782, by J.R. Smith, No. 83 opposite the Pantheon, Oxford Street, 0AD. https://collections.library.yale.edu/catalog/33158143.

APA, 6th edition

The first interview of Werter & Charlotte [graphic]. (0 C.E.). [Illustrations, Genre prints, Book illustrations, Stipple engravings England London 1782]. Publish'd Octr. 16, 1782, by J.R. Smith, No. 83 opposite the Pantheon, Oxford Street. https://collections.library.yale.edu/catalog/33158143.