Methods for Studying the Ecology of Soil Micro-Organisms - Parkinson D.; Gray T.R.G. Williams S.T. (London International Biological Programme, 1971)
Parkinson D.; Gray T.R.G. & Williams S.T.: Methods for Studying the Ecology of Soil Micro-Organisms. London. International Biological Programme, 1971. 0-632-08260-7--(631.46PAR)
ENGLISH