bbk 000000
UDC
Poryadin A. F.
Water supply in big cities: some specific features of the future development
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bbk 000000
UDC
Poryadin A. F.
Improving intake waterworks in domestic water supply systems
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bbk 000000
UDC
Poryadin A. F.
Water supply and wastewater management in Russia in the light of housing and utilities reforming
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