MLA

Peyre, Henri, 1901-1988. Camus, Albert. Box 1, folder 5. 1946 Apr 26. https://collections.library.yale.edu/catalog/17296148.

APA, 6th edition

Peyre, Henri, 1901-1988. (["Box 1, folder 5"])(1946 Apr 26)[Camus, Albert]. https://collections.library.yale.edu/catalog/17296148.