MLA

Rudge, Olga, 1895-1996. Rylands, Jane Turner. Box 4, folder 204. 1983. https://collections.library.yale.edu/catalog/32285116.

APA, 6th edition

Rudge, Olga, 1895-1996. (["Box 4, folder 204"])(1983)[Rylands, Jane Turner]. https://collections.library.yale.edu/catalog/32285116.