Haslam S M <br/><br/>
River pollution   An ecological perspective    
Haslam S M 
 - London  Belhaven Press UK          1990 
 - xii,253p  cm. 
<br/><br/> BibliographyP236-53,Appendix p. 217-35 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomorphology
<br/><br/><label>Dewey Class. No.: </label>U216:(G:55), N0