"Bird Chief." Second War Chief of the Arrapahoes
MLA
Blackmore Museum (Salisbury, England). "Bird Chief." Second War Chief of the Arrapahoes. 1871 June. https://collections.library.yale.edu/catalog/2020522.
APA, 6th edition
Blackmore Museum (Salisbury, England). (1871 June)["Bird Chief." Second War Chief of the Arrapahoes]. https://collections.library.yale.edu/catalog/2020522.