W. Helle <br/><br/>
Spider mites their biology, natural enemies and control. Vol 1 A  

 - Oxford  Elsevier Science Publishers  1985 
 - 405p 
 -  Volume I A .
<br/><br/>W. Helle & M.W. Sabelis: Spider mites their biology, natural enemies and control. Vol 1 A.  Oxford.  Elsevier Science Publishers, 1985. 0-444-42372-9--(632.6542HEL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-444-42372-9 
<br/><br/><label>Dewey Class. No.: </label>632.6542  / HEL