Autograph manuscript, with corrections. 3 p.
MLA
Marinetti, F. T., 1876-1944. Autograph manuscript, with corrections. 3 p.. Box 35, folder 1599. 1895-1944. https://collections.library.yale.edu/catalog/16687042.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 35, folder 1599"])(1895-1944)[Autograph manuscript, with corrections. 3 p.]. https://collections.library.yale.edu/catalog/16687042.