00545nam a2200169Ia 4500008004100000082001600041100002400057245002700081260005100108300000800159650004100167650003400208653001300242942001200255999001700267952009100284170901s1967    xx            000 0 und d  a631.5bP30P  aPearson, C. Lorentz 0aPrinciples of Agronomy  aAmericabReinhold Publishing Corporationc1967  a433  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgronomy  2ddccBK  c13615d13615  00102ddc4070aRAUbRAUd2017-10-18l0o631.5 P30Pp6529r2017-10-18w2017-10-18yBK