MLA

Stieglitz, Alfred, 1864-1946. Calcagno, Lawrence. Box 183, folder 3052. 1972-73. https://collections.library.yale.edu/catalog/32189093.

APA, 6th edition

Stieglitz, Alfred, 1864-1946. (["Box 183, folder 3052"])(1972-73)[Calcagno, Lawrence]. https://collections.library.yale.edu/catalog/32189093.