MLA

Saarinen, Eero, 1910-1961. Interiors. Box 495, folder 1348. undated. https://collections.library.yale.edu/catalog/10017309.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 495, folder 1348"])(undated)[Interiors]. https://collections.library.yale.edu/catalog/10017309.