"A Final Autopsy. Verdict--Died from Swallowing an Utterly Indigestible Object."
MLA
Hansen, Bert, 1944-. "A Final Autopsy. Verdict--Died from Swallowing an Utterly Indigestible Object.". Box 10, folder 18. 1893 February 15. https://collections.library.yale.edu/catalog/32331613.
APA, 6th edition
Hansen, Bert, 1944-. (["Box 10, folder 18"])(1893 February 15)["A Final Autopsy. Verdict--Died from Swallowing an Utterly Indigestible Object."]. https://collections.library.yale.edu/catalog/32331613.