MLA

Marinetti, F. T., 1876-1944. Anonymous. “Editorial Notes.” The London Mercury, Nov. 1919. [00716-1 partially illegible image.] [00714-1]-[00717-1]. box 9, slide 74-77. 1919. https://collections.library.yale.edu/catalog/10649351.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 9, slide 74-77"])(1919)[Anonymous. “Editorial Notes.” The London Mercury, Nov. 1919. [00716-1 partially illegible image.] [00714-1]-[00717-1]]. https://collections.library.yale.edu/catalog/10649351.