000 00457nam a2200181Ia 4500
008 180424s9999 xx 000 0 und d
020 _a521203805
084 _a574.218 D1
100 _a"Debach, Paul"
245 0 _aBiological Control By Natural Enemies
250 _a\\197500ENGGPSX
260 _aCambridge University Press
260 _b1975
260 _cCambridge
300 _a323p
500 _aincludes index and biblioraphy
942 _cBK
999 _c35567
_d35567