MLA

Marinetti, F. T., 1876-1944. Unsigned article. “Autosualutazione.” Primato Artistico Italiano. Gen. 1920.[1809-1]. box 23, slide 69. 1920. https://collections.library.yale.edu/catalog/10651182.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 23, slide 69"])(1920)[Unsigned article. “Autosualutazione.” Primato Artistico Italiano. Gen. 1920.[1809-1]]. https://collections.library.yale.edu/catalog/10651182.