1. Theoretical Considerations -- General Approach -- Groups -- The Political Activities of Interest Groups -- Factors Affecting the Nature of the Political Activities of Interest Groups -- The Case of the Political Activities of Dutch Agricultural Organisations on International Issues -- 2. International Agricultural Problems -- 3. Background of Dutch Political Life -- 4. Agricultural Organisations in the Netherlands -- 5. Earlier Benelux Problems -- 6. Proposals for a European Organisation of Agricultural Markets -- 7. Negotiation and Ratification of the Treaty Establishing the European Economic Community -- 8. Implementation of the Treaty Establishing the European Economic Community I: Institutions and Issues -- Institutional Arrangements -- Policy Issues -- 9. Implementation of the Treaty Establishing the European Economic Community II: The Political Activities of Dutch Organised Agriculture -- Political Activities Within The Netherlands -- Political Activities Outside The Netherlands -- 10. Later Benelux Problems -- 11. Further Attempts to Co-ordinate Western European Agricultural Policies -- 12. Non-Regional Issues -- 13. Conclusions -- Selected Bibliography.