Ptychadenidae (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ptychadenidae" in Swedish language version.

refsWebsite

Global rank Swedish rank

1,087^th place

20^th place

1,578^th place

876^th place

amnh.org

D. R. Frost: Ptychadenidae, Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, besökt 2015-10-20.

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. (red.) (16 januari 2011). ”Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.”. Species 2000: Reading, UK. http://www.catalogueoflife.org/annual-checklist/2011/search/all/key/ptychadenidae/match/1. Läst 24 september 2012.