MLA

Marinetti, F. T., 1876-1944. Cesar A. Comet. Poem: "Bellezas cotidianas y grotesquas: Viento." Grecia, 29 Feb 1920. [1478-1]. box 19, slide 58. 1920. https://collections.library.yale.edu/catalog/10650684.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 19, slide 58"])(1920)[Cesar A. Comet. Poem: "Bellezas cotidianas y grotesquas: Viento." Grecia, 29 Feb 1920. [1478-1]]. https://collections.library.yale.edu/catalog/10650684.