Cite

"1910."

MLA

Hansen, Bert, 1944-. "1910.". Box 12, folder 3. 1910 November 23. https://collections.library.yale.edu/catalog/32325812.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 12, folder 3"])(1910 November 23)["1910."]. https://collections.library.yale.edu/catalog/32325812.