Cite

Unidentified envelope fragment, damaged

MLA

Kilpatrick, Jack Frederick (1915-1967). Unidentified envelope fragment, damaged. Box 17, folder 1465. undated. https://collections.library.yale.edu/catalog/15532169.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 17, folder 1465"])(undated)[Unidentified envelope fragment, damaged]. https://collections.library.yale.edu/catalog/15532169.