The international drinking water supply and sanitation decade : review of nation baseline data
Treść karty:
WHO OFFSET PUBLICATION ; nr 85 INTERNATIONAL 296,566 The international drinking water supply and sanitation decade : review of nation baseline data ( a s at 5'1 December 1980). - Geneva : World Health Organisation, 1984. - 169 s. : wykr. ; 31 cm (WHO Offset Publication ; nr 85) ISBN 92-4-170085-8
