MLA

A Treaty of Commerce [Graphic]. Published 1st Novr. 1797 by Laurie & Whittle, No. 53 Fleet Street, London, 0AD. https://collections.library.yale.edu/catalog/15489947.

APA, 6th edition

A treaty of commerce [graphic]. (0 C.E.). [Satires (Visual works) England 1797, Mezzotints England London 1797]. Published 1st Novr. 1797 by Laurie & Whittle, No. 53 Fleet Street, London. https://collections.library.yale.edu/catalog/15489947.