How do I cite a director’s unpublished notes about a play?

Cite unpublished director’s notes by following the MLA format template. List the director’s name in the “Author” slot and provide a description in place of a title. Provide the date the notes were written if available. In the optional-element slot at the end of the entry, indicate the format:

Carlsson, Knut. Notes on directing Taming of the Shrew. 1956. Unpublished typescript.