Cite

"The Discovery of Anaesthesia."

MLA

Hansen, Bert, 1944-. "The Discovery of Anaesthesia.". Box 14, folder 7. 1896 September. https://collections.library.yale.edu/catalog/32334919.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 14, folder 7"])(1896 September)["The Discovery of Anaesthesia."]. https://collections.library.yale.edu/catalog/32334919.