MLA

Erdoes, Richard, 1912-2008. John Fire Buffalo & Human Skulls. Box 74 | John Fire Lame Deer. undated. https://collections.library.yale.edu/catalog/2097782.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 74 | John Fire Lame Deer"])(undated)[John Fire Buffalo & Human Skulls]. https://collections.library.yale.edu/catalog/2097782.