Cite

"Geo. Eagle Elk, Fools Crow and Family"

MLA

Erdoes, Richard, 1912-2008. "Geo. Eagle Elk, Fools Crow and Family". Box 61. undated. https://collections.library.yale.edu/catalog/2087893.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 61"])(undated)["Geo. Eagle Elk, Fools Crow and Family"]. https://collections.library.yale.edu/catalog/2087893.