| Title | Authors | Year |
|---|---|---|
| The Distribution and Breeding Site Characteristics of Newts in Cumbria, England. |
Denton, J.S… |
1991 |
| Conservation of freshwater fish in the British Isles: the current status and biology of threatened species. Aquatic Conservation |
Maitland, P… |
1991 |
| Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system. |
Mansfield,… |
1991 |
| Critical Load Maps for the United Kingdom I: Soil |
UKCLAG, |
1991 |
| Acid Rain - Critical and Target Load Maps for the United Kingdom |
Environment… |
1991 |
| Environmental Health Criteria 125 Platinum |
WHO, |
1991 |
| Atmospheric Transport of Iron and Its Deposition in the Ocean |
Duce, R. A… |
1991 |
| Influence of HN3 and (HN4)2 SO4 on heathland vegetation |
Van der… |
1991 |
| Effects of ionising radiation on aquatic organisms |
National… |
1991 |
| Forestry and soil protection in the UK |
Moffatt, A.… |
1991 |