MLA

Draper, Muriel, 1886-1952. Demuth, Charles. Box 2, folder 64. 1923, 1925, n.d.. https://collections.library.yale.edu/catalog/17126683.

APA, 6th edition

Draper, Muriel, 1886-1952. (["Box 2, folder 64"])(1923, 1925, n.d.)[Demuth, Charles]. https://collections.library.yale.edu/catalog/17126683.