Cite

"Patent-Medicines."

MLA

Hansen, Bert, 1944-. "Patent-Medicines.". Box 8, folder 33. 1881 September 14. https://collections.library.yale.edu/catalog/32327090.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 8, folder 33"])(1881 September 14)["Patent-Medicines."]. https://collections.library.yale.edu/catalog/32327090.