Cite

Colorado River

MLA

Dellenbaugh, Frederick Samuel, 1853-1935. Colorado River. Box 2, folder 63. 1930. https://collections.library.yale.edu/catalog/2017899.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 2, folder 63"])(1930)[Colorado River]. https://collections.library.yale.edu/catalog/2017899.