MLA

Marinetti, F. T., 1876-1944. Giacomo Balla. Design project for the cover of “Gli Avvenimenti.” Pencil on cardboard. [1353-1]. box 18, slide 13. no date. https://collections.library.yale.edu/catalog/10650602.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 18, slide 13"])(no date)[Giacomo Balla. Design project for the cover of “Gli Avvenimenti.” Pencil on cardboard. [1353-1]]. https://collections.library.yale.edu/catalog/10650602.