00297nam a2200109Ia 450000500170000000800410001708200160005810000160007424500380009026000510012830000080017920260224040957.0260224s9999||||xx |||||||||||||| ||und||  a574.188 SAY  aSyed, T.S.  0aPrinciples of biological control,  aBombay:, Asia: Medical &Tech. Publishersc2005  a147