MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti. No title. Il Carroccio, [1925]. Deals with “Gli Arditi.” [4154-1]-[4155-1]. box 53, slide 14-15. 1925. https://collections.library.yale.edu/catalog/10655317.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 53, slide 14-15"])(1925)[Filippo Tommaso Marinetti. No title. Il Carroccio, [1925]. Deals with “Gli Arditi.” [4154-1]-[4155-1]]. https://collections.library.yale.edu/catalog/10655317.