1. Language endangerment and the human value of linguistic diversity;Hale;Language (Baltimore),1992
2. When Languages Die: The Extinction of the World’s Languages and the Erosion of Human Knowledge;Harrison,2008
3. Vanishing Voices: The Extinction of the World’s Languages;Nettle,2000
4. The social processes that underlie language use;Bacalu;Anal. Metaphys.,2013
5. The reflection of social processes in linguistic structures;Labov,2012