Cheyenne Indian scouts with Lieutenant Edward Casey, who is posed sitting in the center of the rear row.
MLA
Barthelmess, Christian, 1854-1906. Cheyenne Indian scouts with Lieutenant Edward Casey, who is posed sitting in the center of the rear row.. Box 2. 1889. https://collections.library.yale.edu/catalog/16174243.
APA, 6th edition
Barthelmess, Christian, 1854-1906. (["Box 2"])(1889)[Cheyenne Indian scouts with Lieutenant Edward Casey, who is posed sitting in the center of the rear row.]. https://collections.library.yale.edu/catalog/16174243.
