Cite

Monument of petrified wood erected on old fort ground by the boy scouts of Kanab. Nate Adams left.

MLA

Rust, David D. Monument of Petrified Wood Erected on Old Fort Ground by the Boy Scouts of Kanab. Nate Adams Left. 1931. https://collections.library.yale.edu/catalog/2018321.

APA, 6th edition

Rust, D. D. (1931). Monument of petrified wood erected on old fort ground by the boy scouts of Kanab. Nate Adams left. [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2018321.