MLA

Sackville-West, V. (Victoria), 1892-1962. Diaries and notebooks. Box 5. 1950-1962. https://collections.library.yale.edu/catalog/11860681.

APA, 6th edition

Sackville-West, V. (Victoria), 1892-1962. (["Box 5"])(1950-1962)[Diaries and notebooks]. https://collections.library.yale.edu/catalog/11860681.