Cite

"Mt. Rushmore 1971"

MLA

Erdoes, Richard, 1912-2008. "Mt. Rushmore 1971". Box 56. 1971-1983, undated. https://collections.library.yale.edu/catalog/2084752.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 56"])(1971-1983, undated)["Mt. Rushmore 1971"]. https://collections.library.yale.edu/catalog/2084752.