MLA

Flint, Joseph Marshall, 1872-1944. Correspondence, clippings, histories, reports, photographs, and other materials relating to the 39th General Hospital. Box 4. 1923-1971. https://collections.library.yale.edu/catalog/10014167.

APA, 6th edition

Flint, Joseph Marshall, 1872-1944. (["Box 4"])(1923-1971)[Correspondence, clippings, histories, reports, photographs, and other materials relating to the 39th General Hospital]. https://collections.library.yale.edu/catalog/10014167.