Cite

Timberline, 10,800 alt. A9

MLA

Timberline, 10,800 Alt. A9. 1921. https://collections.library.yale.edu/catalog/2017034.

APA, 6th edition

Timberline, 10,800 alt. A9. (1921). [Lantern slides, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017034.