CLAUSEN, I.H.S. <br/><br/>
The use of spiders (Araneae) as ecological indicators / 
I.H.S. Clausen. 
 -- [S.l.] :   [s.n.],   1986 
 - pp. 83-86 
<br/><br/> Separata de : Bull. Br. arachnol. Soc. 7 (3) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arácnidos<br/>Arañas
<br/><br/><label>Universal Decimal Class. No.: </label>595.4