MLA

Kagan, Paul, 1943-1993. "Llano Social Life," later draft, typescript carbon, corrected. Box 2, folder 66. n.d.. https://collections.library.yale.edu/catalog/17157277.

APA, 6th edition

Kagan, Paul, 1943-1993. (["Box 2, folder 66"])(n.d.)["Llano Social Life," later draft, typescript carbon, corrected]. https://collections.library.yale.edu/catalog/17157277.