376 | The effects of fishing at low water levels |
377 | 1967 - George and Gideon cutting mbati for the bedroom block. |
378 | 1967 - Quakers arriving on the shore of L.George. |
379 | First annual review of the Taw/Torridge estuary catchment management plan (1996)
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380 | Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy |
381 | Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide |
382 | The evaluation of a Philips ammonium ion selective electrode (220/14/T) |
383 | A strategic review of the petroleum refinery Industry Sector |
384 | Guidelines for river corridor surveys in the NRA : February 1992. draft 3 |
385 | Contribution of small streams to potential fish production in the Conwy catchment |
386 | NRA strategy for reducing the concentration of pesticides in controlled waters |
387 | The ecology and management of riverine trees : interim report |
388 | Low-cost modifications of the Crump weir to improve fish passage |
389 | Policy and practice for the protection of floodplains |
390 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
391 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
392 | Guidance on the use of Bioassays in Ecological Risk Assessment |
393 | The National Rivers Authority employee attitude survey : summary |
394 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
395 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
396 | Pesticides in the aquatic environment 1997 : executive summary |
397 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
398 | Draft protocol for the derivation of Toxicity Based Consents |
399 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
400 | Second Coniston OS map related to the Seismic Survey 1983 |