World Tunnel Congress '98 (1998 : Sao Paulo)
Tunnels and metropolises : proceedings of the World Tunnel Congress '98 on Tunnel / Sao Paulo, Brazil, 25-30 April, 1998; edited by Arsenio Negro jr; Argimiro Alvarez Ferreira - Sao paulo A.A.Balkema 1998 - xi,1264p.
Includes Index
Tunneling
624.193 / TUN
Tunnels and metropolises : proceedings of the World Tunnel Congress '98 on Tunnel / Sao Paulo, Brazil, 25-30 April, 1998; edited by Arsenio Negro jr; Argimiro Alvarez Ferreira - Sao paulo A.A.Balkema 1998 - xi,1264p.
Includes Index
Tunneling
624.193 / TUN