00344nam a2200097Ia 4500008004100000082002400041100004000065245009200105260004100197300000800238140113s9999    xx            000 0 und d  a632.937(082.2)   L4  a"Maxwell, F.G. & Harris,F.A., Eds."  aProceedings of the summer institute on biological control of plant insects and diseases  a1974bUniv.Press MississipicJackson  a647