00519nam a2200205Ia 4500008004100000041001200041082001000053082001100063100001600074100001600090245006300106260001100169260002900180260000900209300001500218365002500233650002300258650001200281650002000293150909s9999    xx            000 0 und d  aEnglish  a574.5  bREV/SO  aRevelle C    aRevelle P    aSourcebook on the environment: the scientifric perspective  aBoston  bHoughton Mifflin Company  c1974  a332  Pages  aUSD.8.25              aAcid mine Drainage  aEcology  aViral Pollution