MLA

Kagan, Paul, 1943-1993. Draft B, typescript carbon, corrected. Box 2, folder 44. n.d.. https://collections.library.yale.edu/catalog/17157268.

APA, 6th edition

Kagan, Paul, 1943-1993. (["Box 2, folder 44"])(n.d.)[Draft B, typescript carbon, corrected]. https://collections.library.yale.edu/catalog/17157268.