Front cover of Skull and Bones program for Wednesday Evening, June 18, 1919.
MLA
Unknown. Front Cover of Skull and Bones Program for Wednesday Evening, June 18, 1919. 1919. https://collections.library.yale.edu/catalog/10014965.
APA, 6th edition
U. (1919). Front cover of Skull and Bones program for Wednesday Evening, June 18, 1919. [Paper]. https://collections.library.yale.edu/catalog/10014965.