MLA

Kelly, Richard, 1910-1977. Manuscript Materials. Box 387 | Box 62 | Box 63. 1956. https://collections.library.yale.edu/catalog/10020288.

APA, 6th edition

Kelly, Richard, 1910-1977. (["Box 387 | Box 62 | Box 63"])(1956)[Manuscript Materials]. https://collections.library.yale.edu/catalog/10020288.