NEGI,JAGMOHAN <br/><br/>
TRAVEL AGENCY & TOUR OPERATION CONCEPTS & PRINCIPLES 

 - 2nd Ed. 
 - New Delhi  Kanishka Publishers   2008 
<br/><br/><label>ISBN: </label>978-81-7391-171-1 
<br/><br/><label>Dewey Class. No.: </label>910.022  / NEG/T