00459nam a2200169Ia 4500008004100000020001800041082001800059100002500077245002500102260002100127300000800148650004100156650003400197653002300231653001100254700002400265170901s2007    xx            000 0 und d  a9780851998190  a632.752bE65A  aEmden, Helmut F. Van 0aAphids As Crop Pests  aU.K.bCABIc2007  a717  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural pests  aAphids  aHarrington, Richard