Angus, Robert. <br/><br/>
Insecta: Coleoptera: Hydrophilidae: Heliphorinae / 
by Robert Angus. 
 - Stuttgart, [&c.] :  Gustav Fischer,  1992. 
 - x, 144 pages. :  illustrations ;  24 cm. 
 - Süsswasserfauna von Mitteleuropa ;  Bd. 20 (10,ii) .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p.135-139. 
<br/><br/><label>ISBN: </label>343730643X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrophilidae--Identification.
<br/><br/><label>LC Class. No.: </label>QL 596  / .A8A53