Wagner, Edmund G.
Water supply for rural areas and small communities / Textual Documents Edmund G Wagner. - 1 / . - Geneva : World Health Organisation , 1959. - 340 ; .
628.7 / WAG/WA
Water supply for rural areas and small communities / Textual Documents Edmund G Wagner. - 1 / . - Geneva : World Health Organisation , 1959. - 340 ; .
628.7 / WAG/WA