The control of eutrophication of lakes and reservoirs 
/edited by Sven-Olof Ryding, Walter Rast 
 - Paris.  The Parthenon publishing group.  1989 
 - v.1(1v-xxii, 314 p.). 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>1850702578 
<br/><br/><label>Dewey Class. No.: </label>628.168  / CON