Encyclopedia Britannica.

[
    {
        "contributor": "duke",
        "form": "authorizedForm"
    },
    {
        "contributor": "oac",
        "form": "authorizedForm"
    },
    {
        "contributor": "WorldCat",
        "form": "authorizedForm"
    },
    {
        "contributor": "uchic",
        "form": "authorizedForm"
    },
    {
        "contributor": "harvard",
        "form": "authorizedForm"
    },
    {
        "contributor": "nwda",
        "form": "authorizedForm"
    },
    {
        "contributor": "rmoa",
        "form": "authorizedForm"
    }
]

Contributors from initial SNAC EAC-CPF ingest