Untitled [Map of Europe and the Mediterranean on transparency plastic]
MLA
Steinberg, Saul, 1914-1999. Untitled [Map of Europe and the Mediterranean on transparency plastic]. Box 462, folder 6420. undated. https://collections.library.yale.edu/catalog/16851513.
APA, 6th edition
Steinberg, Saul, 1914-1999. (["Box 462, folder 6420"])(undated)[Untitled [Map of Europe and the Mediterranean on transparency plastic]]. https://collections.library.yale.edu/catalog/16851513.