MLA

Erdoes, Richard, 1912-2008. "Adi Defender". Box 55. 1969, undated. https://collections.library.yale.edu/catalog/2083663.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 55"])(1969, undated)["Adi Defender"]. https://collections.library.yale.edu/catalog/2083663.