MLA

Kagan, Paul, 1943-1993. Late draft, pages 1-40, typescript photocopy, corrected. Box 2, folder 37. n.d.. https://collections.library.yale.edu/catalog/17157263.

APA, 6th edition

Kagan, Paul, 1943-1993. (["Box 2, folder 37"])(n.d.)[Late draft, pages 1-40, typescript photocopy, corrected]. https://collections.library.yale.edu/catalog/17157263.