MLA

Oh! I'm Sure It's Mad!!! [Graphic]. Sold for the proprietor by S. Knights, Sweetings Alley, Cornhill and I. Pearce, 11 Paternoster Row, Standidge & Co. litho, London, 0AD. https://collections.library.yale.edu/catalog/10971407.

APA, 6th edition

Oh! I'm sure it's mad!!! [graphic]. (0 C.E.). [Satires (Visual works) England 1835, Lithographs England London 1835]. Sold for the proprietor by S. Knights, Sweetings Alley, Cornhill and I. Pearce, 11 Paternoster Row, Standidge & Co. litho, London. https://collections.library.yale.edu/catalog/10971407.