| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Language Planning in Africa: The Cameroon, Sudan and Zimbabwe | 978-0-415-81965-7 (0-415-81965-2) | 2013 | Richard B. Baldauf Jr. · Robert B. Kaplan |
| Language Planning in Europe: Cyprus, Iceland and Luxembourg | 978-0-415-81964-0 (0-415-81964-4) | 2013 | Robert B. Kaplan · Richard B. Baldauf Jr. |