MLA

Barton, Charles Crillon, -1851, artist. The island of Lobos : rendezvous of the U.S. Army under General Scott, previous to the attack on Vera Cruz, February 9th, 1847. [1847]. https://collections.library.yale.edu/catalog/2016605.

APA, 6th edition

Barton, Charles Crillon, -1851, artist. ([1847])[The island of Lobos : rendezvous of the U.S. Army under General Scott, previous to the attack on Vera Cruz, February 9th, 1847]. https://collections.library.yale.edu/catalog/2016605.