The channel tunnel : conference organized jointly by the Institution of Civil Engineers in London and the Societe des Ingenieurs et Scientifiques de France in Paris, 20-22 September 1989 - London : Thomas Telford, 1989 - 331 p. : ill. ; 24 cm. ISBN: 0727715461 Subjects--Topical Terms: Tunneling--CongressesTunnels--Congresses