European Council of International Schools. (1974). The Directory of the European Council of International Schools. ECIS.
Chicago-Zitierstil (17. Ausg.)European Council of International Schools. The Directory of the European Council of International Schools. Petersfield: ECIS, 1974.
MLA-Zitierstil (9. Ausg.)European Council of International Schools. The Directory of the European Council of International Schools. ECIS, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.