International Conference Sustainable Tourism, Environment and Employment Berlin. (2000). Documentation published on the occasion of the International Conference "Sustainable Tourism, Environment and Employment": Berlin, 11 to 13 October 2000. Umweltbundesamt, ZAD.
Chicago-Zitierstil (17. Ausg.)International Conference Sustainable Tourism, Environment and Employment Berlin. Documentation Published on the Occasion of the International Conference "Sustainable Tourism, Environment and Employment": Berlin, 11 to 13 October 2000. Berlin: Umweltbundesamt, ZAD, 2000.
MLA-Zitierstil (9. Ausg.)International Conference Sustainable Tourism, Environment and Employment Berlin. Documentation Published on the Occasion of the International Conference "Sustainable Tourism, Environment and Employment": Berlin, 11 to 13 October 2000. Umweltbundesamt, ZAD, 2000.