Cite

Dizzy Gillespie and William Butler Yeats

MLA

Longstreet, Stephen, 1907-2002. Dizzy Gillespie and William Butler Yeats. Box 6, folder 30. undated. https://collections.library.yale.edu/catalog/16723273.

APA, 6th edition

Longstreet, Stephen, 1907-2002. (["Box 6, folder 30"])(undated)[Dizzy Gillespie and William Butler Yeats]. https://collections.library.yale.edu/catalog/16723273.