Cite

Postcard to Rev. John B. Acorn

MLA

Kilpatrick, Jack Frederick. Postcard to Rev. John B. Acorn. 0AD. https://collections.library.yale.edu/catalog/15530831.

APA, 6th edition

Kilpatrick, J. F. (0 C.E.). Postcard to Rev. John B. Acorn. https://collections.library.yale.edu/catalog/15530831.