Pulpit Rock, Echo Canyon, Utah. Union Pacific System
MLA
Bardell, J. C. Pulpit Rock, Echo Canyon, Utah. Union Pacific System. 1922. https://collections.library.yale.edu/catalog/2011106.
APA, 6th edition
Bardell, J. C. (1922). Pulpit Rock, Echo Canyon, Utah. Union Pacific System [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2011106.