Jurgen Schwoerbel <br/><br/>
Methods of hydrobiology : Fresh water biology 

 - London  Pergamon Press  1970 
 - 200p 
<br/><br/>Jurgen Schwoerbel: Methods of hydrobiology : Fresh water biology.  London.  Pergamon Press, 1970. 08-006604-6--(574.929SCH)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>08-006604-6 
<br/><br/><label>Dewey Class. No.: </label>574.929  / S C H