South Africa. Dept. of National Health and Population Development, South African Council for Scientific and Industrial Research, Health Aspects of Water Supply Project Advisory Committee, National Institute for Water Research, Hattingh, W. H. J., Morgan, W. S. G., & Nupen, E. M. (1985). Health aspects of water supply: Ten-year report. National Institute for Water Research, Council for Scientific and Industrial Research.
Citace podle Chicago (17th ed.)South Africa. Dept. of National Health and Population Development, South African Council for Scientific and Industrial Research, Health Aspects of Water Supply Project Advisory Committee, National Institute for Water Research, W. H. J. Hattingh, W. S. G. Morgan, a Ethel M. Nupen. Health Aspects of Water Supply: Ten-year Report. Pretoria, South Africa: National Institute for Water Research, Council for Scientific and Industrial Research, 1985.
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