Vereinte Nationen. Working Group on International Contract Practices Bezüge im Wissensnetz Aut (2) DNB-Titeldaten Working Group on International Contract Practices Working Group on International Contract Practices Creator (2) DNB-Titeldaten Working Group on International Contract Practices Working Group on International Contract Practices Administrative Überordnung der Körperschaft (1) GND-Körperschaften Vereinte Nationen. Commission on International Trade Law