MLA

Marinetti, F. T., 1876-1944. Niccolo Sigillino. "Gino Gori." Le Fonti, [1927]. Dedicated to Gori and the influence of Futurism on his literary production. [5271-1]-[5273-1]. box 67, slide 1-13. 1927. https://collections.library.yale.edu/catalog/10657004.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 67, slide 1-13"])(1927)[Niccolo Sigillino. "Gino Gori." Le Fonti, [1927]. Dedicated to Gori and the influence of Futurism on his literary production. [5271-1]-[5273-1]]. https://collections.library.yale.edu/catalog/10657004.