MLA

Koch, Frederick R. (Frederick Robinson). Roland-Manuel. Box 48, folder 979. [1943-54]. https://collections.library.yale.edu/catalog/16601850.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 48, folder 979"])([1943-54])[Roland-Manuel]. https://collections.library.yale.edu/catalog/16601850.