| Title | Authors | Year |
|---|---|---|
| Acid Rain - Critical and Target Load Maps for the United Kingdom |
Environment… |
1991 |
| Environmental Health Criteria 125 Platinum |
WHO, |
1991 |
| Zeigerwerte von Pflanzen in Mitteleuropa |
Ellenberg,… |
1991 |
| Proceedings of the 2nd workshop on sources of variation in ecotoxicological tests with Daphnia magna |
Van der… |
1991 |
| Effects of ionising radiation on aquatic organisms |
National… |
1991 |
| The yield of winter cereals exposed to sulphur dioxide under field conditions. |
McLeod, A.R… |
1991 |
| The Distribution and Breeding Site Characteristics of Newts in Cumbria, England. |
Denton, J.S… |
1991 |
| Nitrate in soil water |
Westling, O… |
1991 |
| Effects of nitrogen loading on wetland ecosystems, with particular reference to atmospheric deposition |
Morris, J.T… |
1991 |
| Air pollution and agriculture |
Ashmore, M.… |
1991 |