55. Dolina Messina. Unidentified man in the dolina.
MLA
Marinetti, F. T., 1876-1944. 55. Dolina Messina. Unidentified man in the dolina.. Box 49, folder 1939. 1917 Sep. https://collections.library.yale.edu/catalog/2008615.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 49, folder 1939"])(1917 Sep)[55. Dolina Messina. Unidentified man in the dolina.]. https://collections.library.yale.edu/catalog/2008615.