005350000a22001810004500 PH-MaWHO 20241108112058.0 Dietrich B H, Henderson J.M. 642542 Urban water supply conditions and needs in seventy-five developing countries. 92-4-130023-X Geneva : World Health Organization, 1963. Public health papers ; no. 23. 92p. SE 1963 eng Water supply Developing countries 642543 MONO 418 418 0 0 0 0 WPRO WPRO 2021-05-23 0 SE 1963 00418 2024-01-24 00:00:00 2021-05-23 MONO