Global distribution systems (GDSs) in the tourism industry  Draft. 

 - Madrid  World Tourism Organization  1995. 
 - 107 p.  ill. 
 - World tourism forecasting series. .
<br/><br/> A study prepared for TWO by Oliver Vialle - 1994. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tourist trade