Wagner, E. G., & Lanoix, J. N. (1959). Water supply for rural areas and small communities. Geneva: World Health Organization.
Παραπομπή Chicago StyleWagner, Edmund G., και J. N. Lanoix. Water Supply for Rural Areas and Small Communities. Geneva: World Health Organization, 1959.
Παραπομπή MLAWagner, Edmund G., και J. N. Lanoix. Water Supply for Rural Areas and Small Communities. Geneva: World Health Organization, 1959.
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