TY - Generic T1 - Acidification and Otter (Lutra-Lutra) Distribution in Scotland Y1 - 1989 A1 - Mason, C.F. A1 - Macdonald, S.M. JF - Water, Air and Soil Pollution VL - 43 ER - TY - Generic T1 - Acidification and otter Lutra lutra distribution on a British river. Y1 - 1987 A1 - Mason, C.F. A1 - Macdonald, S.M. VL - 51 ER -