"The Koch treatment for Consumption--the Patient Sent to Berlin by Frank Leslie's Illustrated Newspaper."
MLA
Hansen, Bert, 1944-. "The Koch treatment for Consumption--the Patient Sent to Berlin by Frank Leslie's Illustrated Newspaper.". Box 2, folder 35. 1891 February 21. https://collections.library.yale.edu/catalog/32329329.
APA, 6th edition
Hansen, Bert, 1944-. (["Box 2, folder 35"])(1891 February 21)["The Koch treatment for Consumption--the Patient Sent to Berlin by Frank Leslie's Illustrated Newspaper."]. https://collections.library.yale.edu/catalog/32329329.
