Sierra Negra (Galápagos) (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sierra Negra (Galápagos)" in Catalan language version.

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galapagos.org

«Ecosystem Restoration: Giant Tortoise Recovery». Galapagos Conservancy: Conservation: Project Areas. Galapagos Conservancy. Arxivat de l'original el de juliol 3, 2013. [Consulta: 17 juny 2013].
«The Galapagos National Park Service will repatriate 150 juvenile tortoises from the Isabela Island Breeding Center». Galapagos Conservancy: Newsroom. Galapagos Conservancy, 10-04-2013. Arxivat de l'original el de juny 8, 2013. [Consulta: 17 juny 2013].

Swingland, Ian R.; Klemens, Michael W. & The Durrell Institute of Conservation and Ecology, eds. (1989), "The Conservation Biology of Tortoises", The Conservation Biology of Tortoises, Occasional Papers of the IUCN Species Survival Commission (SSC) No. 5, Switzerland: International Union for Conservation of Nature and Natural Resources, pàg. 24–28, ISBN 978-2880329860

«Tortoise & Freshwater Turtle Specialist Group. Chelonoidis nigra spp. guentheri». IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature and Natural Resources, 1996. Arxivat de l'original el June 27, 2014. [Consulta: 17 juny 2013].

«Global Volcanism Program | Sierra Negra» (en anglès). [Consulta: 22 abril 2024].

«Tortoise & Freshwater Turtle Specialist Group. Chelonoidis nigra spp. guentheri». IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature and Natural Resources, 1996. Arxivat de l'original el June 27, 2014. [Consulta: 17 juny 2013].
«Ecosystem Restoration: Giant Tortoise Recovery». Galapagos Conservancy: Conservation: Project Areas. Galapagos Conservancy. Arxivat de l'original el de juliol 3, 2013. [Consulta: 17 juny 2013].
«The Galapagos National Park Service will repatriate 150 juvenile tortoises from the Isabela Island Breeding Center». Galapagos Conservancy: Newsroom. Galapagos Conservancy, 10-04-2013. Arxivat de l'original el de juny 8, 2013. [Consulta: 17 juny 2013].