MLA

Jocelyn, Nathaniel, 1796-1881. Eli Ives portrait. 19th century. https://collections.library.yale.edu/catalog/16787674.

APA, 6th edition

Jocelyn, Nathaniel, 1796-1881. (19th century)[Eli Ives portrait]. https://collections.library.yale.edu/catalog/16787674.