Cite

"Pine Ridge Sundance 1971 Medium"

MLA

Erdoes, Richard, 1912-2008. "Pine Ridge Sundance 1971 Medium". Box 67. 1971-1991, undated. https://collections.library.yale.edu/catalog/2092567.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 67"])(1971-1991, undated)["Pine Ridge Sundance 1971 Medium"]. https://collections.library.yale.edu/catalog/2092567.