Cite

Sitting in window seat (copy), [ca. 1923]

MLA

O'Neill, Eugene, 1888-1953. Sitting in window seat (copy), [ca. 1923]. Box 108, folder 1817. n.d.. https://collections.library.yale.edu/catalog/2013204.

APA, 6th edition

O'Neill, Eugene, 1888-1953. (["Box 108, folder 1817"])(n.d.)[Sitting in window seat (copy), [ca. 1923]]. https://collections.library.yale.edu/catalog/2013204.