00442nam a2200157Ia 4500008004100000020001500041082001700056100001600073245003300089260004200122300000800164650004100172650003400213653001500247700002200262170901s1979    xx            000 0 und d  a0198545223  a632.95bG95P  aGunn, D. L. 0aPesticides and human Welfare  aLondonbOxford University Pressc1979  a278  aAgriculture and related technologies  aTechnology (Applied sciences)  aPesticides  aStevens, J. G. R.