Ecce signum, or, Non mi Recordo's visit to the fat good looking gentleman in Pall Mall & their conversation by signs on the very day the present King's father was buried [graphic].
MLA
Ecce Signum, or, Non Mi Recordo's Visit to the Fat Good Looking Gentleman in Pall Mall & Their Conversation by Signs on the Very Day the Present King's Father Was Buried [Graphic]. Pub. Oct. 10, 1820, by S.W. Fores, 41 Picadilli [sic], 0AD. https://collections.library.yale.edu/catalog/33245886.
APA, 6th edition
Ecce signum, or, Non mi Recordo's visit to the fat good looking gentleman in Pall Mall & their conversation by signs on the very day the present King's father was buried [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1820, Etchings England London 1820, Annotations (Provenance) 19th century, Watermarks (Paper) G. Pike 1820]. Pub. Oct. 10, 1820, by S.W. Fores, 41 Picadilli [sic]. https://collections.library.yale.edu/catalog/33245886.