Trade Center - a UN organization Trade Law Centre for Southern Africa World Trade Institute - at the University of Berne World Trade Organization - WTO Does Sales-Only Apportionment Violate International Trade Rules? Report suggesting that sales-only apportionment may violate international trade rules that prohibit export sales. B.H. Druzin (2010, Spring). "Law without the State: the Spontaneous Emergence of Commercial Legal Order," Georgetown Journal of International Law 41: 559-620. Trade law Commercial policy