Upadhyay, A.K. Railways, Bridges and tunnels / by A.K. Upadhyah - 2nd ed. - New Delhi S.K. Kataria 2016 - 272 p. Includes index ISBN: 9789350142899 Subjects--Topical Terms: Highway Engineering RailwaysBridgesTunnels Dewey Class. No.: 625.7 / UPA