[Mount Izaak Walton]. 41
MLA
[Mount Izaak Walton]. 41. 0AD. https://collections.library.yale.edu/catalog/2015425.
APA, 6th edition
[Mount Izaak Walton]. 41. (0 C.E.). [Photographic prints, Photographs, Stereographs]. https://collections.library.yale.edu/catalog/2015425.