Ceballos-Lascuráin, H. (1996). Tourism, ecotourism, and protected areas: The state of nature-based tourism around the world and guidelines for its development. Gland ; Cambridge: IUCN.
استشهاد بنمط شيكاغوCeballos-Lascuráin, Héctor. Tourism, Ecotourism, and Protected Areas: The State of Nature-based Tourism Around the World and Guidelines for Its Development. Gland ; Cambridge: IUCN, 1996.
MLA استشهادCeballos-Lascuráin, Héctor. Tourism, Ecotourism, and Protected Areas: The State of Nature-based Tourism Around the World and Guidelines for Its Development. Gland ; Cambridge: IUCN, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.