MLA

Koch, Frederick R. (Frederick Robinson). Roland-Manuel. Box 52, folder 1109. 1913-24. https://collections.library.yale.edu/catalog/2065839.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 52, folder 1109"])(1913-24)[Roland-Manuel]. https://collections.library.yale.edu/catalog/2065839.