MLA

Steinberg, Saul, 1914-1999. Untitled [Woman saluting nude]. Box 79, folder 1749. circa 1991. https://collections.library.yale.edu/catalog/32475759.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 79, folder 1749"])(circa 1991)[Untitled [Woman saluting nude]]. https://collections.library.yale.edu/catalog/32475759.