MLA

Lord, James, 1922-2009. Notebook: Documents. Box 31, folder 349. undated. https://collections.library.yale.edu/catalog/2112201.

APA, 6th edition

Lord, James, 1922-2009. (["Box 31, folder 349"])(undated)[Notebook: Documents]. https://collections.library.yale.edu/catalog/2112201.