00352nam a2200097Ia 4500008004100000082003300041100004300074245009100117260003800208300000800246140113s9999 xx 000 0 und d a632.7/9.972.14/7(082.2) L4 a"Price, Jones.D. & Solomon, M.F., Ed." aBiology in pest and disease control (13th symposium of the British Ecological Society) a1973bBlackwell Sci. Pub.cOxford a398