Y-1421. Weasel Fat. Portrait.
MLA
McClintock, Walter, 1870-1949. Y-1421. Weasel Fat. Portrait.. Box 75, folder 4394. 1905 1941. https://collections.library.yale.edu/catalog/2010555.
APA, 6th edition
McClintock, Walter, 1870-1949. (["Box 75, folder 4394"])(1905 1941)[Y-1421. Weasel Fat. Portrait.]. https://collections.library.yale.edu/catalog/2010555.