MLA

Jolas, Eugène, 1894-1952. Sternberger, Dolf. Box 3, folder 72. 1945-48. https://collections.library.yale.edu/catalog/17337755.

APA, 6th edition

Jolas, Eugène, 1894-1952. (["Box 3, folder 72"])(1945-48)[Sternberger, Dolf]. https://collections.library.yale.edu/catalog/17337755.