Cite

7: Name and address cards - Various categories

MLA

Huntington, Ellsworth, 1876-1947. 7: Name and address cards - Various categories. Box 13, folder 7. undated. https://collections.library.yale.edu/catalog/32507028.

APA, 6th edition

Huntington, Ellsworth, 1876-1947. (["Box 13, folder 7"])(undated)[7: Name and address cards - Various categories]. https://collections.library.yale.edu/catalog/32507028.