00631nam a22001577a 4500 230614b |||||||| |||| 00| 0 eng d 8120402839 National Science Library National Science Library 624.191:626(082.2) M8.1 International symposium, tunnelling for water resources and power projects: 19-23 January 1988, New Delhi, India / International Tunnelling Association New Delhi: Oxford & IBH Publishing Co., Pvt Ltd., 1988 Vol. 1; 460p. Vol. 2; 411-601p. Water tunnels Hydraulic engineering udc PR 43044 43044 0 0 udc 0 6241916260822_M81 0 64471 NSL NSL GF/Rk-14/C-11/R-3 1991-04-26 Vol. 1; 460p. 0 624.191:626(082.2) M8.1 171895 2023-06-14 00:00:00 1991-04-26 PR 0 0 udc 0 6241916260822_M82 0 64473 NSL NSL GF/Rk-14/C-11/R-3 1991-04-26 Vol. 2; 411-601p. 0 624.191:626(082.2) M8.2 171896 2023-06-14 00:00:00 1991-04-26 PR