MLA

Bainton, Roland H. (Roland Herbert), 1894-1984. Adams, James Luther. 55, folder 801. undated. https://collections.library.yale.edu/catalog/33591429.

APA, 6th edition

Bainton, Roland H. (Roland Herbert), 1894-1984. (["55, folder 801"])(undated)[Adams, James Luther]. https://collections.library.yale.edu/catalog/33591429.