Peyote in Tent 68
MLA
Erdoes, Richard, 1912-2008. Peyote in Tent 68. Box 75 | Sioux Ceremonies 2, Cheyennes. 1969-1991, undated. https://collections.library.yale.edu/catalog/2098425.
APA, 6th edition
Erdoes, Richard, 1912-2008. (["Box 75 | Sioux Ceremonies 2, Cheyennes"])(1969-1991, undated)[Peyote in Tent 68]. https://collections.library.yale.edu/catalog/2098425.