Raja undulata (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Raja undulata" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

1iucnredlist.org

88^th place

4^th place

iucnredlist.org

apiv3.iucnredlist.org

R. Coelho, M. Bertozzi, N. Ungaro & J. Ellis. Raja undulata // IUCN Red List of Threatened Species. International Union for Conservation of Nature, 2003. Посетен на 9 февруари 2010. (на английски)