"H" General
MLA
Douglas, Norman, 1868-1952. "H" General. Box 45. 1940-1947. https://collections.library.yale.edu/catalog/16454731.
APA, 6th edition
Douglas, Norman, 1868-1952. (["Box 45"])(1940-1947)["H" General]. https://collections.library.yale.edu/catalog/16454731.