Bhalla Ashok <br/><br/>
Global warming : causes effects and prevention 

 - Panchkula  Better Books  2008 
 - vi,237 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-81-905750-3-4 
<br/><br/><label>Dewey Class. No.: </label>363.73874  / Bha