D R Khanna <br/><br/>
Environmental technology 

 - New Delhi  Daya publishing house  2013 
<br/><br/><label>ISBN: </label>9788170358220 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution control<br/>Natural resource endowment<br/>Environment and sustainable development<br/>Disaster management<br/>Biodiversity
<br/><br/><label>Dewey Class. No.: </label>363.7  / KHA.E