MLA

Saarinen, Eero, 1910-1961. Models. Box 495, folder 1349. 1959, 1960, undated. https://collections.library.yale.edu/catalog/10017322.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 495, folder 1349"])(1959, 1960, undated)[Models]. https://collections.library.yale.edu/catalog/10017322.