Cite

G914c. Mountain Chief. Horseback.

MLA

McClintock, Walter, 1870-1949. G914c. Mountain Chief. Horseback.. Box 114, folder 5329. 1909 Summer. https://collections.library.yale.edu/catalog/10451117.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 114, folder 5329"])(1909 Summer)[G914c. Mountain Chief. Horseback.]. https://collections.library.yale.edu/catalog/10451117.