National Geographic · Oxford University Press
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Book of Peoples of the World: A Guide to Cultures | Hardcover | 978-1-4262-0238-4 | 2008 | Wade Davis · Catherine Herbert Howell |
| The Last Speakers | " | 978-1-4262-0461-6 | 2010 | |
| When Languages Die: The Extinction of the World's Languages and the Erosion of Human Knowledge | Paperback | 978-0-19-537206-9 | 2008 | |
| When Languages Die: The Extinction of the World's Languages and the Erosion of Human Knowledge | Hardcover | 978-0-19-518192-0 | 2007 | |