Cite

"Sketches from the New York Polyclinic School of Medicine and Surgery."

MLA

Hansen, Bert, 1944-. "Sketches from the New York Polyclinic School of Medicine and Surgery.". Box 5, folder 16. 1890 October 25. https://collections.library.yale.edu/catalog/32332548.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 5, folder 16"])(1890 October 25)["Sketches from the New York Polyclinic School of Medicine and Surgery."]. https://collections.library.yale.edu/catalog/32332548.