Cite

3. Big Moon. Horseback.

MLA

McClintock, Walter, 1870-1949. 3. Big Moon. Horseback.. Box 60, folder 2923. 1941. https://collections.library.yale.edu/catalog/2008339.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 60, folder 2923"])(1941)[3. Big Moon. Horseback.]. https://collections.library.yale.edu/catalog/2008339.