What Languages Are Spoken in the Czech Republic? - WorldAtlas
The World Atlas of Language Structures - WALS - Max Planck
Dialects of Polish - Wikipedia
Show and Tell - Encarta Inspired WORLD ATLAS in Dash! - Dash
Going back in time with the Polish language – Kafkadesk
Pergamon World Atlas: Oxford, London, New York, Toronto, Sydney
nothing to see here
Pergamon World Atlas: Oxford, London, New York, Toronto, Sydney
Langalo Translations - How many languages do you speak? We provide
World Atlas 2.0 Explore 2500 datasets