Harley Earl's office, stair and reception
MLA
Saarinen, Eero, 1910-1961. Harley Earl's office, stair and reception. Box 140, folder 310. undated. https://collections.library.yale.edu/catalog/10017611.
APA, 6th edition
Saarinen, Eero, 1910-1961. (["Box 140, folder 310"])(undated)[Harley Earl's office, stair and reception]. https://collections.library.yale.edu/catalog/10017611.