Untitled [Interior with letters of the alphabet]
MLA
Steinberg, Saul, 1914-1999. Untitled [Interior with letters of the alphabet]. Box 538 (Oversize), folder 7262. circa 1965. https://collections.library.yale.edu/catalog/16855283.
APA, 6th edition
Steinberg, Saul, 1914-1999. (["Box 538 (Oversize), folder 7262"])(circa 1965)[Untitled [Interior with letters of the alphabet]]. https://collections.library.yale.edu/catalog/16855283.