00269nam a2200109Ia 4500008004100000082001500041082000800056245005200064245001700116260001700133300000900150231017s9999    xx            000 0 und d  a625.850993  bBAR 0aClay Mineralogy of Modified Marginal Aggregates 0cF.G. Bartley  bF.G. Bartley  c30cm