Cite

Singing a duet, Madame Squall & Signior Grimaci Strainem Squeezem [graphic]

MLA

O'Keefe, W., active 1794-1805, printmaker. Singing a duet, Madame Squall & Signior Grimaci Strainem Squeezem [graphic]. [1 November 1794]. https://collections.library.yale.edu/catalog/10939163.

APA, 6th edition

O'Keefe, W., active 1794-1805, printmaker. ([1 November 1794])[Singing a duet, Madame Squall & Signior Grimaci Strainem Squeezem [graphic]]. https://collections.library.yale.edu/catalog/10939163.