Pupina difficilis (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pupina difficilis" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

2iucnredlist.org

88^th place

4^th place

iucnredlist.org

apiv3.iucnredlist.org

Pupina difficilis. // IUCN Red List of Threatened Species. International Union for Conservation of Nature. Посетен на 2 януари 2023 г. (на английски)

iucnredlist.org

Mollusc Specialist Group 1996. Pupina difficilis. 2006 IUCN Red List of Threatened Species. Посетен на 7 август 2007.