MLA

Saarinen, Eero, 1910-1961. Exteriors. Box 370, folder 988. undated. https://collections.library.yale.edu/catalog/10012615.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 370, folder 988"])(undated)[Exteriors]. https://collections.library.yale.edu/catalog/10012615.