Human viruses in water, wastewater and soil : report of a WHO Scientific Group. - Geneva : World Health Organization, 1979. - 50 p. : ill. - Technical report series / World Health Organization ; 639. . - Technical report series (World Health Organization) ; 639. .

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ECHO viruses.
Viral pollution of water.
Soil--Pollution.
Sewage disposal--Environmetal aspects.
Environmental health.