MLA

DeCusati, Emiddio, Morse, Samuel Finley Breese, 1791-1872, Yale University Art Gallery. Nathan Smith. 1826. https://collections.library.yale.edu/catalog/16787951.

APA, 6th edition

DeCusati, Emiddio, & Morse, Samuel Finley Breese, 1791-1872, & Yale University Art Gallery. (1826)[Nathan Smith]. https://collections.library.yale.edu/catalog/16787951.