Cite

"Navajo History"

MLA

Erdoes, Richard, 1912-2008. "Navajo History". Box 47. 1976-1977, undated. https://collections.library.yale.edu/catalog/2078622.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 47"])(1976-1977, undated)["Navajo History"]. https://collections.library.yale.edu/catalog/2078622.