MLA

Douglas, Norman, 1868-1952. Freaks. Box 45. 1924-1931, undated. https://collections.library.yale.edu/catalog/16454728.

APA, 6th edition

Douglas, Norman, 1868-1952. (["Box 45"])(1924-1931, undated)[Freaks]. https://collections.library.yale.edu/catalog/16454728.