Veltz, P. European cities in the world economy: Pierre Veltz. Cities in contemporary Europe.(2000).
Cita Chicago (17th ed.)Veltz, Pierre. "European Cities in the World Economy: Pierre Veltz." Cities in Contemporary Europe.(2000) .
Cita MLA (8th ed.)Veltz, Pierre. "European Cities in the World Economy: Pierre Veltz." Cities in Contemporary Europe.(2000), .
Atenció: Aquestes cites poden no estar 100% correctes.