MLA

Saarinen, Eero, 1910-1961. Building #1. Box 378 | Box 377. undated. https://collections.library.yale.edu/catalog/10187437.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 378 | Box 377"])(undated)[Building #1]. https://collections.library.yale.edu/catalog/10187437.