MLA

Steinberg, Saul, 1914-1999. Untitled [Woman in profile]. Box 428, folder 5834. undated. https://collections.library.yale.edu/catalog/33488506.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 428, folder 5834"])(undated)[Untitled [Woman in profile]]. https://collections.library.yale.edu/catalog/33488506.