Cite

"Gratitude."

MLA

Bell, Mary A., 1873-1941. "Gratitude.". Box 8 (Oversize), folder 87. [1936-1939]. https://collections.library.yale.edu/catalog/2003126.

APA, 6th edition

Bell, Mary A., 1873-1941. (["Box 8 (Oversize), folder 87"])([1936-1939])["Gratitude."]. https://collections.library.yale.edu/catalog/2003126.