Cite

From the summit of Mt. Wilson looking N.W.N. Sierra Madre Range, Southern California. 6000 ft

MLA

From the Summit of Mt. Wilson Looking N.W.N. Sierra Madre Range, Southern California. 6000 Ft. 1908. https://collections.library.yale.edu/catalog/2011283.

APA, 6th edition

From the summit of Mt. Wilson looking N.W.N. Sierra Madre Range, Southern California. 6000 ft. (1908). [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2011283.