MLA

Erdoes, Richard, 1912-2008. "Galisteo Abstracts". Box 57. 1977-1989, undated. https://collections.library.yale.edu/catalog/2085589.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 57"])(1977-1989, undated)["Galisteo Abstracts"]. https://collections.library.yale.edu/catalog/2085589.