4451 | Tributyltin in the aquatic environment : final report to the National Rivers Authority September 1990 to September 1992 |
4452 | Farm Waste Disposal Through Brokerage. Phase 1- Scoping Study |
4453 | Nitrogen Balances in Landfills |
4454 | Water quality archive determinand list |
4455 | Economic changes to the value of water environment : draft final report |
4456 | Further Development and Testing Of Artificial Intelligence Systems for the Classification and Diagnosis of River Quality Based on Biological and Environmental Data |
4457 | Software profile : a user manual for AWSTAGE |
4458 | Micro computer guidelines |
4459 | Bedford Oolite aquifer wells history to September 1989 |
4460 | The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1997; |
4461 | River Strat catchment river water quality classification 1990 |
4462 | Guidelines on statutory returns : Dangerous Substances Directive : List 2 substances |
4463 | Regional water quality monitoring and surveillance programme for 1993 : biological assessment of rivers : draft report |
4464 | Dee stock assessment programme : annual report 1991 |
4465 | National marine baseline survey manual Report No NC/mar/006 |
4466 | Low Flow Frequency Analysis Guidelines for Best Practice |
4467 | Development of a Classification Scheme for the Marine Benthic Invertebrate Component, Water Framework Directive. Phase I and II - Transitional and Coastal Waters |
4468 | Cataclews impact assessment summer 1995 : draft data report - Tidal Waters Group |
4469 | Quarterly review : Southern region 1993/94 Apr - Sep 1993 |
4470 | Rainfall frequency estimation in England and Wales. Phase 1a : survey (Note 175) : Phase 1a : survey |
4471 | River Glen : river channel assessment : annex E : instream habitat assessment of the River Glen, Lincolnshire |
4472 | NRA superannuation report and accounts for the period ended 31 March 1990 |
4473 | Gipping/Stour catchment management plan : first annual review |
4474 | Rainfall Frequency Estimation in England and Wales Phase 2: Production |
4475 | APPRAISE 3.0: Technical Overview |