MLA

Marinetti, F. T., 1876-1944. Manuscript poem, possibly in FTM's hand. Signed at bottom of the last page "Filippo Tommaso Marinetti" Title appears on the verso of the last page along with a list of names crossed out by the author. 6 p., numbered 1-6.. Box 36, folder 1621. 1895-1944. https://collections.library.yale.edu/catalog/16687044.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["Box 36, folder 1621"])(1895-1944)[Manuscript poem, possibly in FTM's hand. Signed at bottom of the last page "Filippo Tommaso Marinetti" Title appears on the verso of the last page along with a list of names crossed out by the author. 6 p., numbered 1-6.]. https://collections.library.yale.edu/catalog/16687044.