Cite

G5x7-57. The Horse Race

MLA

McClintock, Walter, 1870-1949. G5x7-57. The Horse Race. Box 124, folder 5791. undated. https://collections.library.yale.edu/catalog/10453545.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 124, folder 5791"])(undated)[G5x7-57. The Horse Race]. https://collections.library.yale.edu/catalog/10453545.