Cite

Letter or note, signed "Atslagi (a Cherokee)"

MLA

Kilpatrick, Jack Frederick (1915-1967). Letter or note, signed "Atslagi (a Cherokee)". Box 22, folder 1773. undated. https://collections.library.yale.edu/catalog/15532577.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 22, folder 1773"])(undated)[Letter or note, signed "Atslagi (a Cherokee)"]. https://collections.library.yale.edu/catalog/15532577.