International Union of Local Authorities & Halasz, D. (1961). Metropolis: A selected bibliography on administrative and other problems of metropolitan areas throughout the world. M. Nijhoff.
Chicago-referens (17:e uppl.)International Union of Local Authorities och D. Halasz. Metropolis: A Selected Bibliography on Administrative and Other Problems of Metropolitan Areas Throughout the World. The Hague: M. Nijhoff, 1961.
MLA-referens (9:e uppl.)International Union of Local Authorities och D. Halasz. Metropolis: A Selected Bibliography on Administrative and Other Problems of Metropolitan Areas Throughout the World. M. Nijhoff, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.