Untitled [Two horses and jockeys]
MLA
Steinberg, Saul, 1914-1999. Untitled [Two horses and jockeys]. Box 375, folder 5065. undated. https://collections.library.yale.edu/catalog/16854836.
APA, 6th edition
Steinberg, Saul, 1914-1999. (["Box 375, folder 5065"])(undated)[Untitled [Two horses and jockeys]]. https://collections.library.yale.edu/catalog/16854836.