Ishaq, Fouzia  . <br/><br/>
Approaches to environmental science /  
by Fouzia Ishaq and Amir Khan. 
 - New Delhi :   Discovery Publishing House ,   2013 
 - 376p :  
<br/><br/><label>ISBN: </label>978-93-5056-353-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science
<br/><br/><label>Dewey Class. No.: </label>G:55  / Q3