| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Pollution Control in a Developing Economy: A Study of the Situation in Ghana | 978-9964-3-0229-0 (9964-3-0229-0) | 1998 |
| Pollution control in a developing economy: A study of the situation in Ghana | 978-9964-3-0165-1 (9964-3-0165-0) | 1989 |