MLA

Marinetti, F. T., 1876-1944. Autograph manuscript translation of FTM's manifesto "La nouvelle religion morale de la vitesse", with a few corrections. 20 p., numbered [1]-20.. Box 28, folder 1433. 1895-1944. https://collections.library.yale.edu/catalog/16687032.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["Box 28, folder 1433"])(1895-1944)[Autograph manuscript translation of FTM's manifesto "La nouvelle religion morale de la vitesse", with a few corrections. 20 p., numbered [1]-20.]. https://collections.library.yale.edu/catalog/16687032.