R. Swarup <br/><br/>
Encyclopaedia of ecology, environment and pollution control. Vol12, Environmental water resources quality, demand, pol 

 - New Delhi  Mittal Publications  1992 
 - 277p 
 -  Vol.12 .
<br/><br/>R. Swarup; S.N. Mishra & V.P. Jauhari: Encyclopaedia of ecology, environment and pollution control. Vol12, Environmental water resources quality, demand, pollution.  New Delhi.  Mittal Publications, 1992. 81-7099-372-5--(363.7303SWA)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-7099-372-5 
<br/><br/><label>Dewey Class. No.: </label>363.7303  / EEEPC