MLA

Russell, Andrew J. Union Pacific Railroad Views. A. Mudge & Son Print, 0AD. https://collections.library.yale.edu/catalog/2018498.

APA, 6th edition

Russell, A. J. (0 C.E.). Union Pacific Railroad views [Pictorial works, Photograph albums, Photographic prints]. A. Mudge & Son Print. https://collections.library.yale.edu/catalog/2018498.