Mainliners by the numbers - A breakdown of 2011's big spenders
Airline business ; 28 , 4 ; 29-32
2012
Aufsatz (Zeitschrift)
Englisch
Railroads are still huge spenders
Engineering Index Backfile | 1932
Using Travel brochures to Target Frequent Travellers and ”Big-Spenders”
Taylor & Francis Verlag | 1994
|British Library Online Contents | 2003