MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti. “La poesia e la nostra guerra.” No source, 194[3]. [10458-1]. box 131, slide 78. 1943. https://collections.library.yale.edu/catalog/10666684.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 131, slide 78"])(1943)[Filippo Tommaso Marinetti. “La poesia e la nostra guerra.” No source, 194[3]. [10458-1]]. https://collections.library.yale.edu/catalog/10666684.