MLA

Commencement Photographs, Inc. Yale School of Medicine, Class of 2007. Commencement Photographs, Inc., 2007. https://collections.library.yale.edu/catalog/16788399.

APA, 6th edition

Commencement Photographs, I. (2007). Yale School of Medicine, Class of 2007 [Photograph]. Commencement Photographs, Inc. https://collections.library.yale.edu/catalog/16788399.