Cite

Y-1101. [Men on Horseback Wearing War Bonnets.]

MLA

McClintock, Walter, 1870-1949. Y-1101. [Men on Horseback Wearing War Bonnets.]. Box 74, folder 4329. 1905 1941. https://collections.library.yale.edu/catalog/2010194.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 74, folder 4329"])(1905 1941)[Y-1101. [Men on Horseback Wearing War Bonnets.]]. https://collections.library.yale.edu/catalog/2010194.