India. Railway Department, Statement showing cost and particulars of the important tunnels on the railways in India, costing not less than Rs. 150,000 each, Up to 31 December 1909, Up to 31 December 1914. Simla, 1911-1915
India. Railway Department, Statement showing coat and particulars of some of the large railway bridges in India, costing not less than Rs. 600,000 each, Up to 31 December 1909, Up to 31 December 1914. Simla, 1911-1915
Spring, Francis J E, Report and estimate for the Lower Ganges bridge; also an approximate estimate of the cost of connecting the bridge with neighbouring railways. Simla, 1903