Free Preview of The subways and tunnels of New York, methods and costs, with an appendix on tunneling machinery and methods and tables of engineering data. by Gilbert H. Gilbert, Lucius I. Wightman and W. L. Saunders.
The subways and tunnels of New York, methods and costs, with an appendix on tunneling machinery and methods and tables of engineering data. by Gilbert H. Gilbert, Lucius I. Wightman and W. L. Saunders.