00429nam a2200169Ia 4500008004100000020001500041082001600056100001800072245002800090250000600118260002900124300000800153650004100161650003400202653001100236653001200247170901s1977    xx            000 0 und d  a0856261378  a632.8bS99P  aHanson, A. A. 0aVirology in Agriculture  a1  aKentbAbacus Pressc1977  a293  aAgriculture and related technologies  aTechnology (Applied sciences)  aPlants  aViruses