Columbia subject headings:
Harvard subject headings:
Channel Tunnel (Coquelles, France, and Folkestone, England)
Regional planning--European Union countries.
Transportation--European Union countries.
Princeton subject headings:
Channel Tunnel (Coquelles, France, and Folkestone, England)
High speed ground transportation--European Union countries.
High speed trains--European Union countries.
Railroad tunnels--England.
Railroad tunnels--France.
Regional planning--European Union countries.
Transportation--European Union countries.