River habitat quality :  the physical character of rivers and streams in the UK and Isle of Man / 
by P. J. Raven ... [et al.]. 
 - Bristol :  Environment Agency,  1998. 
 - x, 86p. 
 - River habitat survey ;  no. 2 .
 - River habitat survey ;  no. 2 .
<br/><br/> Report produced by the Environment Agency, Scottish Environment Potection Agency and the Environment and Heritage Service, Northern Ireland. 
<br/><br/><label>ISBN: </label>1873160429 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rivers--Great Britain.<br/>Riparian ecology--Great Britain.<br/>Water quality--Great Britain.