x  x <br/><br/>
Aquatic insects California  With keys to North American genera and calliforni species 

 - x 
 - Berkeley  University of California Press  1956 
 - ix, 508 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects Insects 
<br/><br/><label>Dewey Class. No.: </label>595.709794/AQU