Cite

[An agreeable group of young gentlemen] [art original].

MLA

Newton, Richard, 1777-1798, artist. [An agreeable group of young gentlemen] [art original].. [1797?]. https://collections.library.yale.edu/catalog/10941045.

APA, 6th edition

Newton, Richard, 1777-1798, artist. ([1797?])[[An agreeable group of young gentlemen] [art original].]. https://collections.library.yale.edu/catalog/10941045.