Letters
MLA
Stieglitz, Alfred, 1864-1946. Letters. Box 81, folder 1655-1665. 1916 Jan-Dec. https://collections.library.yale.edu/catalog/2038423.
APA, 6th edition
Stieglitz, Alfred, 1864-1946. (["Box 81, folder 1655-1665"])(1916 Jan-Dec)[Letters]. https://collections.library.yale.edu/catalog/2038423.