MLA

Stein, Gertrude, 1874-1946. Manuscript notebooks. Box 71, folder 1299-1302. [1928-29]. https://collections.library.yale.edu/catalog/2002535.

APA, 6th edition

Stein, Gertrude, 1874-1946. (["Box 71, folder 1299-1302"])([1928-29])[Manuscript notebooks]. https://collections.library.yale.edu/catalog/2002535.