Columbia subject headings:
Contracts--Europe--History.
International law--Europe--History.
Mass media--Law and legislation--Europe--History.
Treaties--History.
Harvard subject headings:
Contracts--Europe--History.
International law--Europe--History.
Mass media--Law and legislation--Europe--History.
Treaties--History.
Princeton subject headings:
Contracts--Europe--History.
International law--Europe--History.
Mass media--Law and legislation--Europe--History.
Treaties--History.