BALFOUR, Robert Andrew <br/><br/>
The influence of habitat structure on spider density ... / 
Robert Andrew Balfour and Ann L. Rypstra. 
 -- [S.l.] :   [s.n.],   1998 
 - pp. 221-226 
<br/><br/> Separata de : The Journal of Arachnology 26 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arácnidos<br/>Arañas
<br/><br/><label>Universal Decimal Class. No.: </label>595.4