MLA

Fox, George W., 1853-1886. Recto: Passenger cars of a train in front of a station Verso: Sixteen American Indians, seated, receiving instructions from two European American women. Box 2, folder 19. 1876. https://collections.library.yale.edu/catalog/2007813.

APA, 6th edition

Fox, George W., 1853-1886. (["Box 2, folder 19"])(1876)[Recto: Passenger cars of a train in front of a station Verso: Sixteen American Indians, seated, receiving instructions from two European American women]. https://collections.library.yale.edu/catalog/2007813.