Cite

"Sane or Insane 4th?"

MLA

Hansen, Bert, 1944-. "Sane or Insane 4th?". Box 12, folder 8. 1911 June 7. https://collections.library.yale.edu/catalog/32326562.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 12, folder 8"])(1911 June 7)["Sane or Insane 4th?"]. https://collections.library.yale.edu/catalog/32326562.