Cite

"Blackwell's Island Lunatic Asylum."

MLA

Hansen, Bert, 1944-. "Blackwell's Island Lunatic Asylum.". Box 14, folder 1. 1866 February. https://collections.library.yale.edu/catalog/32334820.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 14, folder 1"])(1866 February)["Blackwell's Island Lunatic Asylum."]. https://collections.library.yale.edu/catalog/32334820.