Singh, Samar <br/><br/>
Teaching-learning ecological security the foundation of sustainable development 

 - 1st 
 - Delhi  Shipra Publications  2007 
 - 208p. 
<br/><br/> 149 
<br/><br/><label>ISBN: </label>9788175413443  160 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Faculty of Education
<br/><br/><label>Dewey Class. No.: </label>355.030 SIN-T