Evropská komise. Environment Directorate-General. Sustainable tourism and Natura 2000: guidelines, initiatives and good practices in Europe: final publication based on the Lisbon seminar, December 1999. Luxembourg: Office for Official Publications of the European Communities, 2001. 63 s.
(2001). Sustainable tourism and Natura 2000: Guidelines, initiatives and good practices in Europe : final publication based on the Lisbon seminar, December 1999. Luxembourg: Office for Official Publications of the European Communities.
Styl ChicagoSustainable Tourism and Natura 2000: Guidelines, Initiatives and Good Practices in Europe : Final Publication Based On the Lisbon Seminar, December 1999. Luxembourg: Office for Official Publications of the European Communities, 2001.
Citace podle MLASustainable Tourism and Natura 2000: Guidelines, Initiatives and Good Practices in Europe : Final Publication Based On the Lisbon Seminar, December 1999. Luxembourg: Office for Official Publications of the European Communities, 2001.
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