Cite

Cheyenne Res. [1 of 31 slides]

MLA

Erdoes, Richard, 1912-2008. Cheyenne Res. [1 of 31 slides]. Box 76 | Sioux Ceremonies 2, Cheyennes. 1972, undated. https://collections.library.yale.edu/catalog/2098805.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 76 | Sioux Ceremonies 2, Cheyennes"])(1972, undated)[Cheyenne Res. [1 of 31 slides]]. https://collections.library.yale.edu/catalog/2098805.