MLA

Guicharnaud, Jacques, 1924-2005. Saint-John Perse. Box 3. circa 1945-circa 2005. https://collections.library.yale.edu/catalog/17355824.

APA, 6th edition

Guicharnaud, Jacques, 1924-2005. (["Box 3"])(circa 1945-circa 2005)[Saint-John Perse]. https://collections.library.yale.edu/catalog/17355824.