Sivakumar, M <br/><br/>
Principles of environmental science and engineering 

 - 2 
 - Chennai  Lakshmi Publications  2005 
 - 1.1 - 5.96p: ill. ;  
<br/><br/> Includes model question papers. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogeochemical cycles<br/>Ecosystem<br/>Environmental engineering<br/>Environmental management<br/>Environmental science<br/>Environmental stress<br/>Indian environmental acts<br/>Pollution control act -- Air and water<br/>Population and environment