Biological control :  benefits and risks / 
edited by Heikki M.T. Hokkanen and James M. Lynch. 
 - Paris :  Cambridge ;  New York :  OECD/OCDE ;  Cambridge University Press,  1995. 
 - 304 pages  ill., maps ;  26 cm. 
 - Plant and microbial biotechnology research series ;  4 .