MLA

Marinetti, F. T., 1876-1944. Georges Nurigiani. “Marinetti et le Futurisme.” La Bulgarie, Sofia, 16 gen 1932. [6539-1]-[6540-1]. box 82, slide 79-80. 1932. https://collections.library.yale.edu/catalog/10658991.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 82, slide 79-80"])(1932)[Georges Nurigiani. “Marinetti et le Futurisme.” La Bulgarie, Sofia, 16 gen 1932. [6539-1]-[6540-1]]. https://collections.library.yale.edu/catalog/10658991.