TY - BOOK AU - Megaw,T.M. AU - Bertlett,J.V. TI - Tunnels: planning, design, construction SN - 0853123616 U1 - 624.193 PY - 1982/// CY - Chichester PB - Ellis Horwood KW - Tunnels KW - Tunneling KW - Design N1 - Includes index; Includes bibliography ER -