00309nam a2200097Ia 4500008004100000082001900041100003800060245007200098260003300170300000800203140113s9999    xx            000 0 und d  a632.937.3   N7  a"Jervis, M. & Kidd, N., Editors."  aInsect natural enemies : Practical approaches to study & evaluation  a1997bChapman & HallcLondon  a491