004310000a22001450004500020001500000060000800015082001800023100001500041245004500056260004900101260000900150300000800159490006900167650004900236  a0677159501  a100  a628.502 8 FRE  aFrei, R.W.  aRecent advances in enviromental analysis  aLondon, Gordon and breach science publishers  c1979  a354  aCurrent topics in environmental  and taxicological chemistry V.2  aPollution/ industrial sanitation engineering