MLA

Erdoes, Richard, 1912-2008. Young Men, Emery. Box 61 | Indian People, Powwows. 1971-1995, undated. https://collections.library.yale.edu/catalog/2087817.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 61 | Indian People, Powwows"])(1971-1995, undated)[Young Men, Emery]. https://collections.library.yale.edu/catalog/2087817.