MLA

Marinetti, F. T., 1876-1944. Poster announcing a Ball. “Super FUTUR-BALL. Grande Ballo. Martedi 24 agosto al Grand Hotel Regina. [1927]. [4723-1]. box 60, slide 23. 1927. https://collections.library.yale.edu/catalog/10656223.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 60, slide 23"])(1927)[Poster announcing a Ball. “Super FUTUR-BALL. Grande Ballo. Martedi 24 agosto al Grand Hotel Regina. [1927]. [4723-1]]. https://collections.library.yale.edu/catalog/10656223.