MLA

Mr. Liston & Madm. Vestris in the Duet of Buy-a-Broom!!! [Graphic]. Pubd. by G. Humphrey, 24 St. James's St., 0AD. https://collections.library.yale.edu/catalog/10970249.

APA, 6th edition

Mr. Liston & Madm. Vestris in the duet of Buy-a-broom!!! [graphic]. (0 C.E.). [Etchings England London 1826, Annotations (Provenance) 19th century]. Pubd. by G. Humphrey, 24 St. James's St. https://collections.library.yale.edu/catalog/10970249.