00466nam a22001337a 4500008004100000040005500041080002500096245008400121260004000205300001000245500004500255650001200300653002000312230221b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a628.19(082.2)(4)bK1  aConference on water pollution problems in Europec/ United Nations, Geneva 1961  aGeneva:   bUnited Nations,  c1961  a236p.  aVol. 1 Documents submitted to conference  aScience  aWater pollution