MLA

Erdoes, Richard, 1912-2008. 17th & 18th Century. Box 44 | Plains Indian History I. 1974-1978, undated. https://collections.library.yale.edu/catalog/10254688.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 44 | Plains Indian History I"])(1974-1978, undated)[17th & 18th Century]. https://collections.library.yale.edu/catalog/10254688.