MLA

Marinetti, F. T., 1876-1944. Anonymous. No title. No source, [1939]. About architecture and design, with 8 photos. [9764-1]-[9765-1]. box 123, slide 24-25. 1939. https://collections.library.yale.edu/catalog/10665288.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 123, slide 24-25"])(1939)[Anonymous. No title. No source, [1939]. About architecture and design, with 8 photos. [9764-1]-[9765-1]]. https://collections.library.yale.edu/catalog/10665288.