MLA

Marinetti, F. T., 1876-1944. Unsigned original drawing in pencil of Il Passo di Uarieu. [Menin?], [1936]. [8159-1]. box 103, slide 19. 1936. https://collections.library.yale.edu/catalog/10662015.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 103, slide 19"])(1936)[Unsigned original drawing in pencil of Il Passo di Uarieu. [Menin?], [1936]. [8159-1]]. https://collections.library.yale.edu/catalog/10662015.