Cite

Wearing black dress, showing silhouette against wall, portrait by [Demeyer?]

MLA

O'Neill, Eugene, 1888-1953. Wearing black dress, showing silhouette against wall, portrait by [Demeyer?]. Box 143, folder 2554. [192-?]. https://collections.library.yale.edu/catalog/11580682.

APA, 6th edition

O'Neill, Eugene, 1888-1953. (["Box 143, folder 2554"])([192-?])[Wearing black dress, showing silhouette against wall, portrait by [Demeyer?]]. https://collections.library.yale.edu/catalog/11580682.