The international drinking water supply and sanitation decade : review of nationa baseline data /as at december 1980/.
Card's contents:296,566 INTERNATIONAL The international drinking water supply and sanitation decade : review of nationa baseline data /as at december 1980/. - Geneva : World Health Organization, 1934. - 169 s. : wykr. ; 31 cm /WHO Offset Publication ; nr 85/ ISBN 92-4-170085-8