MLA

Zerbe, Jerome, 1904-1988. Jerome Zerbe Vol. 43: Waldorf Plaza Balls, Powells party for Gielgud and Anderson Leigh Dance, Essex. Box 44. 1947 October 2-1947 December. https://collections.library.yale.edu/catalog/11889889.

APA, 6th edition

Zerbe, Jerome, 1904-1988. (["Box 44"])(1947 October 2-1947 December)[Jerome Zerbe Vol. 43: Waldorf Plaza Balls, Powells party for Gielgud and Anderson Leigh Dance, Essex]. https://collections.library.yale.edu/catalog/11889889.