Cite

Sketch showing ascent of Swiss Peak and Rodgers Peak / made from a photograph from Tupper Crest.

MLA

Sketch Showing Ascent of Swiss Peak and Rodgers Peak / Made from a Photograph from Tupper Crest. 0AD. https://collections.library.yale.edu/catalog/15536322.

APA, 6th edition

Sketch showing ascent of Swiss Peak and Rodgers Peak / made from a photograph from Tupper Crest. (0 C.E.). [Maps]. https://collections.library.yale.edu/catalog/15536322.