Lakes and water management :  proceedings of the 30 years jubilee symposium of the Finnish Limnological Society, held in Helsinki, Finland, 22-23 September 1980 / 
edited by V. Ilmavirta, R.I. Jones, and P.-E. Persson 
 - The Hague :  W. Junk,  1982 
 - 222 p. ;  27 cm. 
 - Developments in hydrobiology  7 .
<br/><br/> 'Reprinted from Hydrobiologia, vol. 86, no. 1/2 (1982)' 
<br/><br/><label>LCCN: </label>81-20856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology--Congresses<br/>Water quality management--Congresses