MLA

Loy, Mina (1882-1966). "Electric Love Release": fragment. Box 5, folder 133. n.d.. https://collections.library.yale.edu/catalog/11700593.

APA, 6th edition

Loy, Mina (1882-1966). (["Box 5, folder 133"])(n.d.)["Electric Love Release": fragment]. https://collections.library.yale.edu/catalog/11700593.