36. Man with a fox on his head.
MLA
Marinetti, F. T., 1876-1944. 36. Man with a fox on his head.. Box 49, folder 1939. ca. 1917. https://collections.library.yale.edu/catalog/2008599.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 49, folder 1939"])(ca. 1917)[36. Man with a fox on his head.]. https://collections.library.yale.edu/catalog/2008599.