authorities shall undertake consultations with these peoples with a view to the adoption of measures to achieve this objective. 2. Adequate measures shall be taken to ensure that these peoples have the opportunity to attain fluency in the national language or in one of the official languages of the country. 3. Measures shall be taken to preserve and promote the development and practice of the indigenous languages of the peoples concerned. Article 29 The imparting of general knowledge and skills that will help children belonging to the peoples concerned to participate fully and on an equal footing in their own community and in the national community shall be an aim of education for these peoples. Article 30 1. Governments shall adopt measures appropriate to the traditions and cultures of the peoples concerned, to make known to them their rights and duties, especially in regard to labour, economic opportunities, education and health matters, social welfare and their rights deriving from this Convention. 2. If necessary, this shall be done by means of written translations and through the use of mass communications in the languages of these peoples. Article 31 Educational measures shall be taken among all sections of the national community, and particularly among those that are in most direct contact with the peoples concerned, with the object of eliminating prejudices that they may harbour in respect of these peoples. To this end, efforts shall be made to ensure that history textbooks and other educational materials provide a fair, accurate and informative portrayal of the societies and cultures of these peoples. Part VII. Contacts and Co-operation across Borders Article 32 Governments shall take appropriate measures, including by means of international agreements, to facilitate contacts and co-operation between indigenous and tribal peoples across borders, including activities in the economic, social, cultural, spiritual and environmental fields. Part VIII. Administration Article 33 1. The governmental authority responsible for the matters covered in this Convention shall ensure that agencies or other appropriate mechanisms exist to administer the