MLA

The Flattening Mill [Graphic]. Pub. 1825 by I Royle, King St. Holborn & at the artists Depy., 21 Charlotte St., 0AD. https://collections.library.yale.edu/catalog/10970139.

APA, 6th edition

The flattening mill [graphic]. (0 C.E.). [Fictitious characters, Satires (Visual works) England 1825, Etchings England London 1825]. Pub. 1825 by I Royle, King St. Holborn & at the artists Depy., 21 Charlotte St. https://collections.library.yale.edu/catalog/10970139.