MLA

Erickson, T. Charles, and Yale University Office of Public Information. Larry Holmes Planting the Tree of Hippocrates. 0AD. https://collections.library.yale.edu/catalog/16787645.

APA, 6th edition

Erickson, T. C., & of Public Information, Y. U. O. (0 C.E.). Larry Holmes planting the tree of Hippocrates [Photograph]. https://collections.library.yale.edu/catalog/16787645.