Cite

"Is This a Time for Sleep?"

MLA

Hansen, Bert, 1944-. "Is This a Time for Sleep?". Box 1, folder 6. 1883 August 2. https://collections.library.yale.edu/catalog/32325637.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 1, folder 6"])(1883 August 2)["Is This a Time for Sleep?"]. https://collections.library.yale.edu/catalog/32325637.