MLA

Marinetti, F. T., 1876-1944. Anonymous. “Nessun commento al discorso di Mussolini.” L'Impero, 8 feb 1926. [4242-1]. box 54, slide 22. 1926. https://collections.library.yale.edu/catalog/10655462.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 54, slide 22"])(1926)[Anonymous. “Nessun commento al discorso di Mussolini.” L'Impero, 8 feb 1926. [4242-1]]. https://collections.library.yale.edu/catalog/10655462.