MLA

Erdoes, Richard, 1912-2008. Buffalo Rite . Box 70 | Sioux Ceremonies 1. 1970-1971, undated. https://collections.library.yale.edu/catalog/2094653.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 70 | Sioux Ceremonies 1"])(1970-1971, undated)[Buffalo Rite ]. https://collections.library.yale.edu/catalog/2094653.