APA (7th ed.) Zitazioa
Conventz, S. (2014). Hub cities in the knowledge economy: Seaports, airports, brainports. Ashgate Pub..
Chicago Style (17th ed.) Zitazioa
Conventz, Sven. Hub Cities in the Knowledge Economy: Seaports, Airports, Brainports. Burlington: Ashgate Pub., 2014.
MLA (9th ed.) Zitazioa
Conventz, Sven. Hub Cities in the Knowledge Economy: Seaports, Airports, Brainports. Ashgate Pub., 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.