MLA

Saarinen, Eero, 1910-1961. Interiors. Box 404, folder 1130. undated. https://collections.library.yale.edu/catalog/10019280.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 404, folder 1130"])(undated)[Interiors]. https://collections.library.yale.edu/catalog/10019280.