Cite

Ft. Sarpy on the Yellowstone

MLA

Hutton, James D. Ft. Sarpy on the Yellowstone. 0AD. https://collections.library.yale.edu/catalog/11447604.

APA, 6th edition

Hutton, J. D. (0 C.E.). Ft. Sarpy on the Yellowstone [Autographs, Drawings (visual works), Sketches]. https://collections.library.yale.edu/catalog/11447604.