00437nam a2200157Ia 4500008004100000020001500041082001900056100001600075245004400091260003300135300000800168650004100176650003400217653001600251653001200267170901s1988    xx            000 0 und d  a1852930365  a630.2745bP15E  aPark, J. R. 0aEnvironmental Management in Agriculture  aLondonbBelhaven Pressc1988  a260  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgriculture  aEcology