(2004). Pocket Book of e-Business Indicators.2004 edition. Office for Official Publications of the European Communities.
Chicago-Zitierstil (17. Ausg.)Pocket Book of E-Business Indicators.2004 Edition. Luxembourg: Office for Official Publications of the European Communities, 2004.
MLA-Zitierstil (9. Ausg.)Pocket Book of E-Business Indicators.2004 Edition. Office for Official Publications of the European Communities, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.