MLA

Huntington, Ellsworth, 1876-1947. Turkish visas. Box 1, folder 3. undated. https://collections.library.yale.edu/catalog/32202963.

APA, 6th edition

Huntington, Ellsworth, 1876-1947. (["Box 1, folder 3"])(undated)[Turkish visas]. https://collections.library.yale.edu/catalog/32202963.