00289nam a2200097Ia 4500008004100000082001600041100001700057245007300074260003700147300000700184140113s9999    xx            000 0 und d  a581.33   L1  a"West, R.G."  aStudying the past by pollen analysis :(Oxford biology readers NO.10)  a1971bOxford Univ. PresscMadras  a16