Pravakar Rout <br/><br/>
Environmental concept development in children 

 - Ashish Publ, New Delhi  1988 
 - xxix,250p figs., tabs 
<br/><br/><label>ISBN: </label>81-7024-206-1 
<br/><br/><label>Dewey Class. No.: </label>155.413 Rou