Cite

Seated in chairs of his design [some with Aline Saarinen; includes negatives]

MLA

Saarinen, Eero, 1910-1961. Seated in chairs of his design [some with Aline Saarinen; includes negatives]. Box 7, folder 64 - 65. undated. https://collections.library.yale.edu/catalog/10021662.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 7, folder 64 - 65"])(undated)[Seated in chairs of his design [some with Aline Saarinen; includes negatives]]. https://collections.library.yale.edu/catalog/10021662.