Cite

Postcard to Rev. John B. Acorn

MLA

Kilpatrick, Jack Frederick (1915-1967). Postcard to Rev. John B. Acorn. Box 14, folder 1195. circa 1935 September. https://collections.library.yale.edu/catalog/15530831.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 14, folder 1195"])(circa 1935 September)[Postcard to Rev. John B. Acorn]. https://collections.library.yale.edu/catalog/15530831.