MLA

Erdoes, Richard, 1912-2008. Babies in Cradleboards, etc.. Box 60 | Indian People, Powwows. 1975-1993, undated. https://collections.library.yale.edu/catalog/2087538.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 60 | Indian People, Powwows"])(1975-1993, undated)[Babies in Cradleboards, etc.]. https://collections.library.yale.edu/catalog/2087538.