Cite

"Black Hills, Needles"

MLA

Erdoes, Richard, 1912-2008. "Black Hills, Needles". Box 86. 1971-1991, undated. https://collections.library.yale.edu/catalog/2106458.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 86"])(1971-1991, undated)["Black Hills, Needles"]. https://collections.library.yale.edu/catalog/2106458.