| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Khat Controversy: Stimulating the Debate on Drugs | Hardcover | 978-1-84520-250-7 (1-84520-250-3) | 2007 | Susan Beckerleg · David Anderson · Axel Klein |
| The Khat Controversy: Stimulating the Debate on Drugs | Paperback | 978-1-84520-251-4 (1-84520-251-1) | 2007 | Axel Klein · David Anderson · Susan Beckerleg |