Proms 84 press release
MLA
Dunbar, Rudolph, 1899-1988. Proms 84 press release. Box 3, folder 53. 1984. https://collections.library.yale.edu/catalog/31922723.
APA, 6th edition
Dunbar, Rudolph, 1899-1988. (["Box 3, folder 53"])(1984)[Proms 84 press release]. https://collections.library.yale.edu/catalog/31922723.