Cite

Crazy Bull and Prairie Chicken, underchiefs of Gros Ventres

MLA

Crazy Bull and Prairie Chicken, Underchiefs of Gros Ventres. 0AD. https://collections.library.yale.edu/catalog/2010459.

APA, 6th edition

Crazy Bull and Prairie Chicken, underchiefs of Gros Ventres. (0 C.E.). [Half stereographs, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2010459.