MLA

Saarinen, Eero, 1910-1961. Site plans; sketches; renderings. Box 211, folder 648. 1954-1955, undated. https://collections.library.yale.edu/catalog/10017316.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 211, folder 648"])(1954-1955, undated)[Site plans; sketches; renderings]. https://collections.library.yale.edu/catalog/10017316.