F520a. Elk Horn as Herald.
MLA
McClintock, Walter, 1870-1949. F520a. Elk Horn as Herald.. Box 136, folder 6156. 1905 Summer. https://collections.library.yale.edu/catalog/10451832.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 136, folder 6156"])(1905 Summer)[F520a. Elk Horn as Herald.]. https://collections.library.yale.edu/catalog/10451832.