Cite

Vexations. Score xeroxed by John Cage, poster.

MLA

Lloyd, Lewis L. (1938). Vexations. Score xeroxed by John Cage, poster.. Box 46 (Oversize). 1963. https://collections.library.yale.edu/catalog/10516291.

APA, 6th edition

Lloyd, Lewis L. (1938). (["Box 46 (Oversize)"])(1963)[Vexations. Score xeroxed by John Cage, poster.]. https://collections.library.yale.edu/catalog/10516291.