Cite

Joseph Obermeyer and Katherine Stieglitz

MLA

Stieglitz, Alfred, 1864-1946. Joseph Obermeyer and Katherine Stieglitz. Box 130, folder 2522. ca. 1917. https://collections.library.yale.edu/catalog/2002561.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 130, folder 2522"])(ca. 1917)[Joseph Obermeyer and Katherine Stieglitz]. https://collections.library.yale.edu/catalog/2002561.