00533nam a2200181Ia 4500008004100000020001500041082001700056100001800073245006100091250000600152260005200158300000800210650004100218650003400259653002200293700001700315700001900332170901s1971    xx            000 0 und d  a0632082607  a631.46bP17M  aParkinson, D. 0aMethods for Studying the Ecology of Soil Micro Organisms  a1  aOxfordbBlackwell Scientific Publicationsc1971  a116  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoil microbiology  aGray, T.R.G.  aWilliams, S.T.