Cite

12 photographs [of] Glacier National Park [graphic].

MLA

12 Photographs [of] Glacier National Park [Graphic]. Glacier Park Co., 0AD. https://collections.library.yale.edu/catalog/2011483.

APA, 6th edition

12 photographs [of] Glacier National Park [graphic]. (0 C.E.). [Pictorial works, Photographic prints]. Glacier Park Co. https://collections.library.yale.edu/catalog/2011483.