El Salaam syphon under Suez Canal

Kinawy, A. W. / Sainsbury, L. G. / Vanlishout, H. et al. | British Library Conference Proceedings | 1997

El Salaam Syphon under the Suez Canal

Craig, R. N. / Sainsbury, L. G. / Vanlishout, H. et al. | British Library Conference Proceedings | 1997

El Salaam syphon under the Suez Canal

British Library Online Contents | 1996

El Salam syphon under Suez Canal

Mazen, A. / Craig, R. / International Tunnelling Association | British Library Conference Proceedings | 1994

El Salam Syphon under the Suez Canal

Craig, R. / Mazen, A. / Danish Society for Tunnels and Underground Works et al. | British Library Conference Proceedings | 1993