Knapp, Farwell
MLA
Putnam, Phelps, 1894-1948. Knapp, Farwell. Box 5. 1917-1942, undated. https://collections.library.yale.edu/catalog/2014198.
APA, 6th edition
Putnam, Phelps, 1894-1948. (["Box 5"])(1917-1942, undated)[Knapp, Farwell]. https://collections.library.yale.edu/catalog/2014198.