MLA

Marinetti, F. T., 1876-1944. Unsigned program. “Programa. Acto De Homenaje a Italia.” [Empresa Mundial Seleccion, Buenos Aires, 27 Oct 1921]. [2876-1]-[2877-1]. box 37, slide 16-17. 1921. https://collections.library.yale.edu/catalog/10653116.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 37, slide 16-17"])(1921)[Unsigned program. “Programa. Acto De Homenaje a Italia.” [Empresa Mundial Seleccion, Buenos Aires, 27 Oct 1921]. [2876-1]-[2877-1]]. https://collections.library.yale.edu/catalog/10653116.