MLA

Saarinen, Eero, 1910-1961. Architectural mylars. Box 632 | Box 631. undated. https://collections.library.yale.edu/catalog/10018930.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 632 | Box 631"])(undated)[Architectural mylars]. https://collections.library.yale.edu/catalog/10018930.