MLA

Saarinen, Eero, 1910-1961. Negatives: Existing site conditions #1 - #69; other negatives; transparencies. Box 455, folder 1256 - 1257. Circa 1950, 1960-1961, undated. https://collections.library.yale.edu/catalog/10016257.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["Box 455, folder 1256 - 1257"])(Circa 1950, 1960-1961, undated)[Negatives: Existing site conditions #1 - #69; other negatives; transparencies]. https://collections.library.yale.edu/catalog/10016257.