Bibliography
Bibliography of Vitality:
Victor Golla, Ives Goddard, Lyle Campbell, Marianne Mithun and Mauricio Mixco. 2008. "North America." In Atlas of the World's Languages, edited by Chris Moseley and Ron Asher. 7-41. Routledge.
Bibliography of Locations:
Christopher Rogers, Naomi Palosaari and Lyle Campbell. 2010. "Endangered Languages of the United States." In Atlas of the World’s Languages in Danger of Disappearing, edited by Christopher Moseley. 108-130. UNESCO.
Bibliography of Context:
Moseley, Christopher. 2007. Encyclopedia of the World's Endangered Languages, 1 edn. Abingdon: Routledge. ISBN 070071197X