MLA

Saarinen, Eero, 1910-1961. Sketches; renderings. Box 560, folder 1510. 1960, undated. https://collections.library.yale.edu/catalog/10017238.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 560, folder 1510"])(1960, undated)[Sketches; renderings]. https://collections.library.yale.edu/catalog/10017238.