Cite

919. [Thunder Tipi. Brings Down the Sun's Camp. Lookout Butte in Background.]

MLA

McClintock, Walter, 1870-1949. 919. [Thunder Tipi. Brings Down the Sun's Camp. Lookout Butte in Background.]. Box 68, folder 3727. undated. https://collections.library.yale.edu/catalog/2009908.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 68, folder 3727"])(undated)[919. [Thunder Tipi. Brings Down the Sun's Camp. Lookout Butte in Background.]]. https://collections.library.yale.edu/catalog/2009908.