00424nam a2200145Ia 4500008004100000020001500041082001400056100002300070245003900093260004700132300000800179650004100187650003400228653001600262170901s1974    xx            000 0 und d  a0521203392  a633bH96E  aHutchinson, Joseph 0aEvolutionary Studies in World Crop  aNew YorkbCambridge University pressc1974  a175  aAgriculture and related technologies  aTechnology (Applied sciences)  aField crops