MLA

Dunbar, Rudolph, 1899-1988. Orrett Rhoden piano recital. Box 2, folder 47. 1984. https://collections.library.yale.edu/catalog/17398757.

APA, 6th edition

Dunbar, Rudolph, 1899-1988. (["Box 2, folder 47"])(1984)[Orrett Rhoden piano recital]. https://collections.library.yale.edu/catalog/17398757.