Cite

"Where Mr. Field's Subscription List Would do the Most Good."

MLA

Hansen, Bert, 1944-. "Where Mr. Field's Subscription List Would do the Most Good.". Box 8, folder 31. 1881 July 20. https://collections.library.yale.edu/catalog/32331499.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 8, folder 31"])(1881 July 20)["Where Mr. Field's Subscription List Would do the Most Good."]. https://collections.library.yale.edu/catalog/32331499.