00289nam a2200097Ia 4500008004100000082003900041100003700080245003600117260003000153300000800183140113s9999    xx            000 0 und d  a"631.52""1971.629/7.2(082.2)   l2"  a"Lupton, F.G.H., et al�, Eds."  aThe way ahead in plant breeing   a1972bEucarpiacCambridge  a269