MLA

McClintock, Walter, 1870-1949. 216. [Tipi of Motokoyáki (Two Bear Woman and Mother-in-Law of Siksikaikoan (Little Blackfoot)/William Jackson).]. Box 61, folder 3045. 1938. https://collections.library.yale.edu/catalog/2008489.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 61, folder 3045"])(1938)[216. [Tipi of Motokoyáki (Two Bear Woman and Mother-in-Law of Siksikaikoan (Little Blackfoot)/William Jackson).]]. https://collections.library.yale.edu/catalog/2008489.