Cite

An old encore at the opera [graphic] / I.L.R. pinx.

MLA

Gillray, James, 1756-1815, printmaker. An old encore at the opera [graphic] / I.L.R. pinx.. 1803 April 1. https://collections.library.yale.edu/catalog/11861147.

APA, 6th edition

Gillray, James, 1756-1815, printmaker. (1803 April 1)[An old encore at the opera [graphic] / I.L.R. pinx.]. https://collections.library.yale.edu/catalog/11861147.