MLA

Erdoes, Richard, 1912-2008. White Hunters Beaver. Box 45 | Plains Indian History I. 1976-1978, undated. https://collections.library.yale.edu/catalog/10256033.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 45 | Plains Indian History I"])(1976-1978, undated)[White Hunters Beaver]. https://collections.library.yale.edu/catalog/10256033.