MLA

Marinetti, F. T., 1876-1944. Unsigned article. “Marinetti all'Ass. Reduci.” Fanfulla, Brazil, 31 maggio 1926. [04808-1]. box 61, slide 28. 1926. https://collections.library.yale.edu/catalog/10656333.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 61, slide 28"])(1926)[Unsigned article. “Marinetti all'Ass. Reduci.” Fanfulla, Brazil, 31 maggio 1926. [04808-1]]. https://collections.library.yale.edu/catalog/10656333.