MLA

Watkins, Carleton E., 1829-1916. Santa Clara College. Watkins 13. [1863]. https://collections.library.yale.edu/catalog/2056898.

APA, 6th edition

Watkins, Carleton E., 1829-1916. (["Watkins 13"])([1863])[Santa Clara College]. https://collections.library.yale.edu/catalog/2056898.