51, 650. [Three Guns, Leader of the Grass Dancers.]
MLA
McClintock, Walter, 1870-1949. 51, 650. [Three Guns, Leader of the Grass Dancers.]. Box 64, folder 3373. 1939. https://collections.library.yale.edu/catalog/2009004.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 64, folder 3373"])(1939)[51, 650. [Three Guns, Leader of the Grass Dancers.]]. https://collections.library.yale.edu/catalog/2009004.