Negi, Balvir Singh. <br/><br/>
Human Geography: an ecological approach /  

 - 3rd ed. /  
 - Meerut-250001 :   Kedar Nath Ram Nath ,   1993 
 - 423p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Races and tribes
<br/><br/><label>Dewey Class. No.: </label>U47  / M3;1