00334nam a2200097Ia 4500080001700000245012400017260002500141300001100166500004000177583001900217  a16.04.02 I61  aSanitation in developing countries : proceedings of a workshop on training held in Lobatse, Botswana, 14-20 August 1980  bIDRCaOttawaCAc1980  a172 p.  aIncludes bibliographical references  c3/7/00kM2LMGR