Sewage Sludge and Waste Solids Disposal Systems in Agricultural and Industrial Regions :  Selected Problems / 
Ed. Lech Dzienis. 
 - Olsztyn :  HARD Publishing Company,  2009. 
 - 136 s. :  il. ;  30 cm. 
 - Polish Journal of Environmental Studies. Series of Monographs  vol. 6/2009 .
<br/><br/>bibliogr. 
<br/><br/><label>ISBN: </label>9788361940203 
<br/><br/><label>Uniwersalna Klasyfikacja Dziesiętna: </label> 628.3