00670nam a22001937a 450000500170000000600040001700700040002100800040002502000160002904000090004505000220005424501010007626000920017730000250026950001190029465000290041370000160044270000180045820170726121407.0000000000  a99878814116  aUOEL  aTD187.5b.S9 1989  aEnvironment pollution and its management in Eastern Africa /cedited by M. R. Khan, H. J. Gijzen  aDar es Salaam, Tanzania :bThe Faculty of Science, University of Dar Es Salaam,cc1989.  aviii, 382 p. :bill.  aProceedings of a symposium organized by the Faculty of Science University of Dar Es Salaam, September 11-14th 1989  xEnvironmental Technology  aKhan, M. R.  aGijzen, H. J.