Salam, A. M. E. (1994). Tunnelling and ground conditions: : proceedings of the International Congress on Tunnelling and Ground Conditions, Cairo Egypt, 3-7 April 1994. Rotterdam: A. A. Balkema.
Παραπομπή Chicago StyleSalam, Abdel M. E. Tunnelling and Ground Conditions: : Proceedings of the International Congress On Tunnelling and Ground Conditions, Cairo Egypt, 3-7 April 1994. Rotterdam: A. A. Balkema, 1994.
Παραπομπή MLASalam, Abdel M. E. Tunnelling and Ground Conditions: : Proceedings of the International Congress On Tunnelling and Ground Conditions, Cairo Egypt, 3-7 April 1994. Rotterdam: A. A. Balkema, 1994.
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