Cite

Er-moke. Kiowa Chief and his bodyguard

MLA

Er-Moke. Kiowa Chief and His Bodyguard. William Soule, 0AD. https://collections.library.yale.edu/catalog/2010362.

APA, 6th edition

Er-moke. Kiowa Chief and his bodyguard. (0 C.E.). [Photographic prints, Photographs, Studio portraits]. William Soule. https://collections.library.yale.edu/catalog/2010362.