Knight of Pentacles
MLA
Nettles, Bea, 1946-. Knight of Pentacles. Box 1, folder 49. 1971 July. https://collections.library.yale.edu/catalog/33288427.
APA, 6th edition
Nettles, Bea, 1946-. (["Box 1, folder 49"])(1971 July)[Knight of Pentacles]. https://collections.library.yale.edu/catalog/33288427.