Cite

Yosemite Valley from Glacier point.

MLA

Dellenbaugh, Frederick Samuel, 1853-1935. Yosemite Valley from Glacier point.. Box 2 | Folder 48. 1921. https://collections.library.yale.edu/catalog/2017859.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 2 | Folder 48"])(1921)[Yosemite Valley from Glacier point.]. https://collections.library.yale.edu/catalog/2017859.