If you are citing a license or a contract as a historical document, follow the MLA guidelines for citing digital or physical archives. The following example refers to a contract in a physical archive:

Avon Books contract. 1965. Dawn Powell Papers, Columbia University Libraries, Rare Book and Manuscript Library, box 44, folder 11.

Note that private contracts between individuals (unlike contracts with public agencies) are not public documents and will not be accessible to your readers. If you are a party to an active contract you are citing, review the contract to ensure that quoting from the work does not violate its terms. For more examples of entries documenting works in archives, see appendix 2 of the MLA Handbook.

Work Cited

MLA Handbook. 9th ed., Modern Language Association of America, 2021.