MLA

Knight, Ellis Cornelia, 1757-1837, artist. View of the lake and Temple of Esculapius in Villa Borghese, Rome, 1792 [art original]. [1792]. https://collections.library.yale.edu/catalog/33207475.

APA, 6th edition

Knight, Ellis Cornelia, 1757-1837, artist. ([1792])[View of the lake and Temple of Esculapius in Villa Borghese, Rome, 1792 [art original]]. https://collections.library.yale.edu/catalog/33207475.