The vowels [graphic]
MLA
The Vowels [Graphic]. Pub. Sept. 24, 1840 by Tilt & Bogue, Fleet Street, 0AD. https://collections.library.yale.edu/catalog/10971641.
APA, 6th edition
The vowels [graphic]. (0 C.E.). [Satires (Visual works) England 1840, Etchings England London 1840]. Pub. Sept. 24, 1840 by Tilt & Bogue, Fleet Street. https://collections.library.yale.edu/catalog/10971641.