MLA

Saarinen, Eero, 1910-1961. Furniture, general. Box 83, folder 147. 1954-1966, undated. https://collections.library.yale.edu/catalog/10017120.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 83, folder 147"])(1954-1966, undated)[Furniture, general]. https://collections.library.yale.edu/catalog/10017120.