Cite

"A Social Problem."

MLA

Hansen, Bert, 1944-. "A Social Problem.". Box 7. 1891 May 23. https://collections.library.yale.edu/catalog/32326902.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 7"])(1891 May 23)["A Social Problem."]. https://collections.library.yale.edu/catalog/32326902.