00401nam a2200157Ia 4500003000400000005001700004008004000021020001800061040000700079041000800086082001800094100001600112245006500128260003500193300001500228OSt20250718101735.0210210b2012   xxu||||| |||| 00| 0 eng d  a9789381293874  cAL  aeng  a338.4791 GUPT  aAshim Gupta  aTravel agency and tour operationsb: concepts and principles  aNew DelhibCentrum Pressc2012  aviii,280p.