Ungerer, H. (1990). Telecommunications in Europe: Free choice for the user in Europe's 1992 market ; the challenge for the European Community (Rev. ed.). Commission of the European Communities.
Chicago-Zitierstil (17. Ausg.)Ungerer, Herbert. Telecommunications in Europe: Free Choice for the User in Europe's 1992 Market ; the Challenge for the European Community. Rev. ed. Brussels: Commission of the European Communities, 1990.
MLA-Zitierstil (9. Ausg.)Ungerer, Herbert. Telecommunications in Europe: Free Choice for the User in Europe's 1992 Market ; the Challenge for the European Community. Rev. ed. Commission of the European Communities, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.