MLA

Kilpatrick, Jack Frederick (1915-1967). Journal notebook. Box 12, folder 1102. circa 1937. https://collections.library.yale.edu/catalog/15494376.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 12, folder 1102"])(circa 1937)[Journal notebook]. https://collections.library.yale.edu/catalog/15494376.