Cite

"Portrait of Marcel Duchamp" (1 print, 1 proof)

MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. "Portrait of Marcel Duchamp" (1 print, 1 proof). Box 71, folder 1845. n.d.. https://collections.library.yale.edu/catalog/2003482.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 71, folder 1845"])(n.d.)["Portrait of Marcel Duchamp" (1 print, 1 proof)]. https://collections.library.yale.edu/catalog/2003482.