291. Sacred Tipi (Sun's Disc).
MLA
McClintock, Walter, 1870-1949. 291. Sacred Tipi (Sun's Disc).. Box 72, folder 4082. 1905 1941. https://collections.library.yale.edu/catalog/2010832.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 72, folder 4082"])(1905 1941)[291. Sacred Tipi (Sun's Disc).]. https://collections.library.yale.edu/catalog/2010832.