Cite

Unidentified couple playing chess [Mr. and Mrs. George Bernard Shaw?]

MLA

Stieglitz, Alfred, 1864-1946. Unidentified couple playing chess [Mr. and Mrs. George Bernard Shaw?]. Box 130, folder 2528. ca. 1907. https://collections.library.yale.edu/catalog/2002567.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 130, folder 2528"])(ca. 1907)[Unidentified couple playing chess [Mr. and Mrs. George Bernard Shaw?]]. https://collections.library.yale.edu/catalog/2002567.