| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Atlas of the World's Languages | Hardcover | 978-0-415-31074-1 | 2007 | R.E. Asher |
| Atlas of the World's Languages | " | 978-0-415-01925-5 | 1993 | " |
| Colloquial Estonian | Paperback | 978-0-415-08743-8 | 1994 | |
| Colloquial Latvian: A Complete Language Course | " | 978-0-415-11797-5 | 1996 | |
| Colloquial Latvian: The Complete Course for Beginners | " | 978-0-415-45480-3 | 2009 | Dace Praulin |
| Colloquial Latvian: The Complete Course for Beginners | CD-ROM | 978-0-415-28687-9 | 2002 | |
| Encyclopedia of the World's Endangered Languages | Hardcover | 978-0-7007-1197-0 | 2007 | |