MLA

Marinetti, F. T., 1876-1944. Morpurgo. “Imminente colloquio. O Che bella festa!” Roma (Cairo), 1920. [2365-1]. box 30, slide 65. 1920. https://collections.library.yale.edu/catalog/10652024.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 30, slide 65"])(1920)[Morpurgo. “Imminente colloquio. O Che bella festa!” Roma (Cairo), 1920. [2365-1]]. https://collections.library.yale.edu/catalog/10652024.