MLA

Erdoes, Richard, 1912-2008. Buffalo Beaver. Box 77 | Western History, White. 1970-1980, undated. https://collections.library.yale.edu/catalog/2099641.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 77 | Western History, White"])(1970-1980, undated)[Buffalo Beaver]. https://collections.library.yale.edu/catalog/2099641.