Cite

Untitled [Man in Boat with Butterfly]

MLA

Steinberg, Saul, 1914-1999. Untitled [Man in Boat with Butterfly]. Box 75, folder 1343. undated. https://collections.library.yale.edu/catalog/16855625.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 75, folder 1343"])(undated)[Untitled [Man in Boat with Butterfly]]. https://collections.library.yale.edu/catalog/16855625.