Cite

"The New Treatment of Diphtheria."

MLA

Hansen, Bert, 1944-. "The New Treatment of Diphtheria.". Box 14, folder 6. 1895 March. https://collections.library.yale.edu/catalog/32334913.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 14, folder 6"])(1895 March)["The New Treatment of Diphtheria."]. https://collections.library.yale.edu/catalog/32334913.