Sea Lions, West End, Farallone Islands, Pacific Ocean
MLA
Watkins, Carleton E., 1829-1916. Sea Lions, West End, Farallone Islands, Pacific Ocean. Watkins 1. [1861-73]. https://collections.library.yale.edu/catalog/2057050.
APA, 6th edition
Watkins, Carleton E., 1829-1916. (["Watkins 1"])([1861-73])[Sea Lions, West End, Farallone Islands, Pacific Ocean]. https://collections.library.yale.edu/catalog/2057050.