Cite

"Sketches at the New York 'Virus Farm'--Drawn by T. Dart Walker."

MLA

Hansen, Bert, 1944-. "Sketches at the New York 'Virus Farm'--Drawn by T. Dart Walker.". Box 5, folder 19. 1894 January 6. https://collections.library.yale.edu/catalog/32331351.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 5, folder 19"])(1894 January 6)["Sketches at the New York 'Virus Farm'--Drawn by T. Dart Walker."]. https://collections.library.yale.edu/catalog/32331351.