MLA

Herbst, Josephine, 1892-1969. Cuba. Box 60. 1901-1969, undated. https://collections.library.yale.edu/catalog/2043549.

APA, 6th edition

Herbst, Josephine, 1892-1969. (["Box 60"])(1901-1969, undated)[Cuba]. https://collections.library.yale.edu/catalog/2043549.