National Rivers Authority · Stationery Office Books
| title | ISBN-13 | year of publication |
|---|---|---|
| Adroddiad Achyfrifon Blynyddol 1989-90 | 978-1-873160-01-5 | 1990 |
| Contaminants Entering the Sea: A Report on Contaminated Loads Entering the Seas Around England and Wales, 1990-93 | 978-0-11-886514-2 | 1995 |
| Contaminated Land and the Water Environment | 978-0-11-886521-0 | 1994 |
| The Mersey Estuary: A Report on Environmental Quality | 978-0-11-885844-1 | 1995 |