MLA

Brady, John Green, 1847-1918. Native Alaskan towns. Box 27, folder 166. n.d.. https://collections.library.yale.edu/catalog/11140849.

APA, 6th edition

Brady, John Green, 1847-1918. (["Box 27, folder 166"])(n.d.)[Native Alaskan towns]. https://collections.library.yale.edu/catalog/11140849.