Cite

Red Cow and Chief Bad Gun, second chief of Mandan

MLA

Red Cow and Chief Bad Gun, Second Chief of Mandan. 0AD. https://collections.library.yale.edu/catalog/2010421.

APA, 6th edition

Red Cow and Chief Bad Gun, second chief of Mandan. (0 C.E.). [Half stereographs, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2010421.