PSUL S WELCH <br/><br/>
LIMNOLOGICAL METHODS 

 - NEWYORK  MCGRAW HILL  1948 
 - X,381 
<br/><br/> INCLUDES INDEX 
<br/><br/><label>ISBN: </label>07-069175-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater biology. Lakes.
<br/><br/><label>LC Class. No.: </label>QH 96.W45 1948