[10] Guidelines for water resources development cooperation - Towards sustainable water resources management (richtsnoeren voor duurzaam waterbeheer), Europese Commissie, 1998, Catalogusnummer: CF-16-98-966-EN-C, beschikbaar op: [http ...]
[10] Guidelines for water resources development cooperation - Towards sustainable water resources management, Europäische Kommission, 1998, Katalognr.: CF-16-98-966-EN-C, verfügbar auf: [http ...]