MLA

Huntington, Ellsworth, 1876-1947. China. Box 53, folder 1769. 1926. https://collections.library.yale.edu/catalog/32505454.

APA, 6th edition

Huntington, Ellsworth, 1876-1947. (["Box 53, folder 1769"])(1926)[China]. https://collections.library.yale.edu/catalog/32505454.