00441nam a2200145Ia 4500008004100000020001500041082001700056100001600073245007300089260003400162300000800196650004100204650003400245653001600279170901s1978    xx            000 0 und d  a0198545126  a631.47bW27Q  aWestern, S. 0aMonographs on Soil SurveybSoil Survey contracts and quality control  aOxfordbClarendon Pressc1978  a284  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoil survey