00488nam a2200169Ia 4500003000400000008004100004020001500045082001800060100001800078245005400096260004700150300001300197650003400210650004100244650001900285650001400304OSt170901s1960    xx            000 0 und d  a0471023159  a631.522bA37P  aAllard, R. W. 0aPrinciples of Plant Breeding / cby  R. W. Allard  a.- New Yorkb: John Wiley and Sonsc, 1960  axi,485p.  aTechnology (Applied Sciences)  aAgriculture and Related Technologies  aPlant Breeding  aBook Bank