MLA

Sartre, Jean-Paul, 1905-1980. Notes for lecture on ethics prepared for Gramsci Institute, typescript, corrected. Box 4, folder 55. [1964]. https://collections.library.yale.edu/catalog/17315802.

APA, 6th edition

Sartre, Jean-Paul, 1905-1980. (["Box 4, folder 55"])([1964])[Notes for lecture on ethics prepared for Gramsci Institute, typescript, corrected]. https://collections.library.yale.edu/catalog/17315802.