Singh, S.R. <br/><br/>
Environmental education and sustainable development 
S.R. Singh 
 - New Delhi  Aph publishing corporation  2012 
 - 220p. 
<br/><br/><label>ISBN: </label>978-81-313-1289-6  695 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economice