↑ 1.0 1.1
"Cygnus melancoryphus " . IUCN Red List of Threatened Species. Version 2012.2International Union for Conservation of Nature . 2012. Ginkuhà 24 Oktubre 2012 .
↑ Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
↑ 3.0 3.1 3.2 David, Normand, and Michel Gosselin (2002) Gender agreement of avian species names, Bulletin of the British Ornithologists' Club, vol. 122, no. 1
↑ 4.0 4.1 (2006) , website, Zoonomen - Zoological Nomenclature Resource, 2006.12.10
↑ (1998) , website, Zoonomen - Zoological Nomenclature Resource
↑ 6.0 6.1 Dickinson, Edward C., ed. (2003) , The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition
↑ (1996) , database, NODC Taxonomic Code
↑ 8.0 8.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist" . Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012 . CS1 maint: multiple names: authors list (link ) CS1 maint: extra text: authors list (link ) ↑ ITIS: The Integrated Taxonomic Information System . Orrell T. (custodian), 26 Abril 2011
