MLA

Richardson, Dorothy M. (Dorothy Miller), 1873-1957. A SUSSEX AUCTION: typescript 5 p.. Box 8, folder 177. n.d.. https://collections.library.yale.edu/catalog/16495644.

APA, 6th edition

Richardson, Dorothy M. (Dorothy Miller), 1873-1957. (["Box 8, folder 177"])(n.d.)[A SUSSEX AUCTION: typescript 5 p.]. https://collections.library.yale.edu/catalog/16495644.