MLA

Loy, Mina (1882-1966). Chapter I: draft fragments. Box 8, folder 196. undated. https://collections.library.yale.edu/catalog/32238895.

APA, 6th edition

Loy, Mina (1882-1966). (["Box 8, folder 196"])(undated)[Chapter I: draft fragments]. https://collections.library.yale.edu/catalog/32238895.