(1999). Urban Future: Preparatory expertises (Overviews) for the World Report on Urban Future for the Global Conference on the Urban Future URBAN 21.
Chicago-Zitierstil (17. Ausg.)Urban Future: Preparatory Expertises (Overviews) for the World Report on Urban Future for the Global Conference on the Urban Future URBAN 21. Bonn, 1999.
MLA-Zitierstil (8. Ausg.)Urban Future: Preparatory Expertises (Overviews) for the World Report on Urban Future for the Global Conference on the Urban Future URBAN 21. 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.