76 | The Hull catchment (river factfiles) |
77 | The Derwent catchment (river factfiles) |
78 | The Esk catchment (river factfiles) |
79 | The oceanography of Falmouth harbour |
80 | The River Ash : enhancement project |
81 | Viruses in the aquatic environment |
82 | Guide to the Medway navigation |
83 | The Tyne catchment (river factfiles) |
84 | Welcome to the Essex catchment |
85 | The registration of waste carriers |
86 | Protecting the Kenwith Valley, Bideford |
87 | The River Weaver : fact file |
88 | The water bill : trickle irrigation |
89 | The industrial fishery for sandeels |
90 | The River Thames phosphate model |
91 | Help safeguard the Torridge (leaflet) |
92 | Meanders in the Amazon River |
93 | Air quality and the environment |
94 | The Development of LandSim 2.5 |
95 | The River Alt : fact file |
96 | The Wear catchment (river factfiles) |
97 | A Report on the Drought on the River Darent |
98 | Pollution prevention in the '90's : the positive approach |
99 | A report on the investigation of the Taff litter problem |
100 | 1967 - Building the bedroom block in the IBP compound at L. George |