MLA

Marinetti, F. T., 1876-1944. Invitation to a recital of Richard Wagner in Leipzig, Feb 1933. [6085-1]-[6086-1]. box 77, slide 25-26. 1933. https://collections.library.yale.edu/catalog/10658236.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 77, slide 25-26"])(1933)[Invitation to a recital of Richard Wagner in Leipzig, Feb 1933. [6085-1]-[6086-1]]. https://collections.library.yale.edu/catalog/10658236.