APA
Ringsby K., Stiftelsen Teknikdalen S. 8., . (2008091020120831). Transport Business Booster - TBB. : Trafikverket.
Chicago
Ringsby Karin, Stiftelsen Teknikdalen Stiftelse 882601-1549, . 2008091020120831. Transport Business Booster - TBB. : Trafikverket.
Harvard
Ringsby K., Stiftelsen Teknikdalen S. 8., . (2008091020120831). Transport Business Booster - TBB. : Trafikverket.
MLA
Ringsby Karin, Stiftelsen Teknikdalen Stiftelse 882601-1549, . Transport Business Booster - TBB. : Trafikverket. 2008091020120831.