00595nam a2200181 a 450000500170000000800410001702000160005804000270007404100080010104400080010908200190011724500830013626000310021930000610025050400590031165000260037065000170039620160224105749.0160224r19961994- ad fr|||| 000 0 eng d a095134661 X aCO-BoIAVH cCO-BoIAVH 0 aeng aenk04a307.3364bM49m00aMega-slums :bthe coming sanitary /cA WaterAid report written by Maggie Black aLondon :bWaterAid,c1994. a30 páginas :bIlustraciones, gráficas ;c30 x 21 cm. aIncluye referencias bibliográficas: páginas 29-30.26aSaneamiento ambiental16aAgua potable