GS-97. Elk Horn and Son in Costume.
MLA
McClintock, Walter, 1870-1949. GS-97. Elk Horn and Son in Costume.. Box 122, folder 5696. undated. https://collections.library.yale.edu/catalog/10453417.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 122, folder 5696"])(undated)[GS-97. Elk Horn and Son in Costume.]. https://collections.library.yale.edu/catalog/10453417.