Welch, Paul S. <br/><br/>
Limnological methods /  
Paul S Welch. 
 - /   . 
 - Delhi :   Narendra Publishing House ,   2003. 
 - xviii,381p. :   ills.,picts.,tables ;   18cm .  
<br/><br/>Includes bibliographical references aand index 
<br/><br/><label>ISBN: </label>8185375704  RS995.00 
<br/><br/><label>Subjects--Index Terms: </label>LIMNOLOGY  
<br/><br/><label>Dewey Class. No.: </label>551.482  / WEL/L