00363nam a2200133Ia 4500008004100000082001600041100001500057245001900072260004200091300000800133650004100141650003400182653001300216170901s1961    xx            000 0 und d  a631.5bP15C  aPark, R.D. 0aCrop Husbandry  aLondonbOxford University Pressc1961  a237  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgronomy