MLA

Marinetti, F. T., 1876-1944. 8. Battaglione Lombardo Volontari Ciclisti Automobilisti. Unidentified soldier next to bicycle. Box 49, folder 1938. 1915?. https://collections.library.yale.edu/catalog/2008574.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["Box 49, folder 1938"])(1915?)[8. Battaglione Lombardo Volontari Ciclisti Automobilisti. Unidentified soldier next to bicycle]. https://collections.library.yale.edu/catalog/2008574.