MLA

Huntington, Ellsworth, 1876-1947. In Tibetan calligraphy H-6. Box 3, item H-6. 1947, undated. https://collections.library.yale.edu/catalog/32213340.

APA, 6th edition

Huntington, Ellsworth, 1876-1947. (["Box 3, item H-6"])(1947, undated)[In Tibetan calligraphy H-6]. https://collections.library.yale.edu/catalog/32213340.