Human viruses in water, wastewater and soil : report of a WHO scientific group [meeting held in Geneva from 23 to 27 October 1978]. 

 - 50p. 
 - (WHO technical report series ; 639) .
<br/><br/><label>ISBN: </label>92-4-120639-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water microbiology<br/>Soil microbiology<br/>Viruses--Isolation and purification<br/>Sewage