Cite

"Robert Koch, Discoverer of the Cure of Comsumption."

MLA

Hansen, Bert, 1944-. "Robert Koch, Discoverer of the Cure of Comsumption.". Box 12, folder 19. 1890 December 6. https://collections.library.yale.edu/catalog/32333703.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 12, folder 19"])(1890 December 6)["Robert Koch, Discoverer of the Cure of Comsumption."]. https://collections.library.yale.edu/catalog/32333703.