SEA/RC27/7 Rev.1 Corr.1 - Rural water supplies in South-East Asia
الإستشهاد
World Health Organization. Regional Office for South-East Asia. (1974). SEA/RC27/7 Rev.1 Corr.1 - Rural water supplies in South-East Asia. WHO Regional Office for South-East Asia. https://iris.who.int/handle/10665/130091