Columbia subject headings:
Copyright licenses--United States.
Copyright--United States.
Library of Congress. Copyright Office.
United States. Copyright Royalty Tribunal.
Harvard subject headings:
Copyright licenses--United States.
Copyright--United States.
Library of Congress. Copyright Office.
United States. Copyright Royalty Tribunal.
Princeton subject headings:
Copyright licenses--United States.
Copyright--United States.
Library of Congress. Copyright Office
United States. Copyright Royalty Tribunal