GRAY, JOHN S <br/><br/>
MANUAL OF METHODS IN AQUATIC ENVIRONMENT RESEARCH 

 - 1A ED. 
 - Italia  S.E.  1992 ROMA 
 - 49 
<br/><br/><label>ISBN: </label>9251031363 
<br/><br/><label>LCCN: </label>59646 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGIA<br/>ECOSISTEMAS ACUATICOS<br/>MEDIO AMBIENTE
<br/><br/><label>Dewey Class. No.: </label>574.5263