MLA

Marinetti, F. T., 1876-1944. Full page with 8 diagrams of space constellations, maps, etc. No source. [5445-1]. box 69, slide 25. no date. https://collections.library.yale.edu/catalog/10657299.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 69, slide 25"])(no date)[Full page with 8 diagrams of space constellations, maps, etc. No source. [5445-1]]. https://collections.library.yale.edu/catalog/10657299.