MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. Villon, Jacques. Manuscript notes on, by Marcel Duchamp (in Series X). Box 120, folder 2862. 1943. https://collections.library.yale.edu/catalog/2040552.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 120, folder 2862"])(1943)[Villon, Jacques. Manuscript notes on, by Marcel Duchamp (in Series X)]. https://collections.library.yale.edu/catalog/2040552.