Cite

"Aim Higher!"

MLA

Hansen, Bert, 1944-. "Aim Higher!". Box 11, folder 30. 1909 December 8. https://collections.library.yale.edu/catalog/32326856.

APA, 6th edition

Hansen, Bert, 1944-. (["Box 11, folder 30"])(1909 December 8)["Aim Higher!"]. https://collections.library.yale.edu/catalog/32326856.