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Railroad tunnels -- Design and construction (8)
Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. The East River Tunnels. Paper No. 1159 [electronic resource] / Francis Mason
Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. The Cross-Town Tunnels. Paper No. 1158 [electronic resource] / Francis Mason
Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150 [electronic resource] / Charles W. Raymond
Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. The East River Division. Paper No. 1152 [electronic resource] / Alfred Noble
Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad, The North River Division. Paper No. 1151 [electronic resource] / Charles M. Jacobs
Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 : The Bergen Hill Tunnels. Paper No. 1154 [electronic resource] / F. Lavis
Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910, Start/End Papers : The New York Tunnel Extension of the Pennsylvania Railroad [electronic resource] / Various
Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155 [electronic resource] / Bertram Henry Majendie Hewett