(1997). National parks and protected areas: Keystones to conservation and sustainable development ; [proceedings of the NATO Advanced Research Workshop on Contributions of National Parks and Protected Areas to Heritage, Conservation, Tourism and Sustainable Development, held in Krakow, Poland, August 26 - 30, 1996]. Springer.
Chicago-Zitierstil (17. Ausg.)National Parks and Protected Areas: Keystones to Conservation and Sustainable Development ; [proceedings of the NATO Advanced Research Workshop on Contributions of National Parks and Protected Areas to Heritage, Conservation, Tourism and Sustainable Development, Held in Krakow, Poland, August 26 - 30, 1996]. Berlin [u.a.]: Springer, 1997.
MLA-Zitierstil (9. Ausg.)National Parks and Protected Areas: Keystones to Conservation and Sustainable Development ; [proceedings of the NATO Advanced Research Workshop on Contributions of National Parks and Protected Areas to Heritage, Conservation, Tourism and Sustainable Development, Held in Krakow, Poland, August 26 - 30, 1996]. Springer, 1997.