Cite

Eight maps of the universe and the earth. No source. [5499-1]

MLA

Marinetti, F. T., 1876-1944. Eight maps of the universe and the earth. No source. [5499-1]. box 69, slide 79. no date. https://collections.library.yale.edu/catalog/10657377.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 69, slide 79"])(no date)[Eight maps of the universe and the earth. No source. [5499-1]]. https://collections.library.yale.edu/catalog/10657377.