Cite

Untitled [Map of the United States and Canada on transparency plastic]

MLA

Steinberg, Saul, 1914-1999. Untitled [Map of the United States and Canada on transparency plastic]. Box 462, folder 6421. undated. https://collections.library.yale.edu/catalog/16851514.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 462, folder 6421"])(undated)[Untitled [Map of the United States and Canada on transparency plastic]]. https://collections.library.yale.edu/catalog/16851514.