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

 - Tamil Nadu  Lakshmi Publications  2004 
 - 1.1 - 5.92p: ill.  
<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