Williams, D. Dudley. <br/><br/>
Aquatic insects / 
D. Dudley Williams and Blair W. Feltmate. 
 - Wallingford, U.K. :  CAB International,  c1992. 
 - xiii, 358 p. :  ill., maps ;  24 cm. 
<br/><br/><label>ISBN: </label>0851987826 ( pbk. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic insects.
<br/><br/><label>LC Class. No.: </label>QL472  / W54 1992