Cite

"An Anatomical Interruption."

MLA

Hansen, Bert, 1944-. "An Anatomical Interruption.". Box 13, folder 25. 1881 December 31. https://collections.library.yale.edu/catalog/32332237.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 13, folder 25"])(1881 December 31)["An Anatomical Interruption."]. https://collections.library.yale.edu/catalog/32332237.