Cite

Green River, Wyoming from moving [Union Pacific] train. Train moving away at good speed

MLA

Dellenbaugh, Frederick Samuel, 1853-1935. Green River, Wyoming from moving [Union Pacific] train. Train moving away at good speed. Box 1 | Folder 33. 1929. https://collections.library.yale.edu/catalog/2017691.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 1 | Folder 33"])(1929)[Green River, Wyoming from moving [Union Pacific] train. Train moving away at good speed]. https://collections.library.yale.edu/catalog/2017691.