Cite

"As It Was In 1400."

MLA

Hansen, Bert, 1944-. "As It Was In 1400.". Box 11, folder 33. 1910 July 13. https://collections.library.yale.edu/catalog/32326872.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 11, folder 33"])(1910 July 13)["As It Was In 1400."]. https://collections.library.yale.edu/catalog/32326872.