D,. H.. · Dick Hughes · Doug Hughes
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Legalization of Drugs | Hardcover | 978-0-521-83786-6 (0-521-83786-3) | 2006 | Peter de Marneffe |
| The Legalization of Drugs | Paperback | 978-0-521-54686-7 (0-521-54686-9) | 2005 | " |