Ahmad, A, ed. <br/><br/>
Encyclopaedia of geography. 6V. V1- Physical geography. V2- Human geography. V3- World geography. V4- Population geography. V5- Political geography. V6- Economic geography 

 - New Delhi  Omega Publications  2011 
 - v p. 
<br/><br/><label>Dewey Class. No.: </label>910.3 E19E