Cite

Arrigo de Angelis. No title. No source, [1929]. [5783-1]

MLA

Marinetti, F. T., 1876-1944. Arrigo de Angelis. No title. No source, [1929]. [5783-1]. box 73, slide 43. 1929. https://collections.library.yale.edu/catalog/10657794.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 73, slide 43"])(1929)[Arrigo de Angelis. No title. No source, [1929]. [5783-1]]. https://collections.library.yale.edu/catalog/10657794.