Romana, M. (2007). Underground works under special conditions: Proceedings of the Workshop (W1), Madrid, Spain, 6-7 July 2007 (Paperback). London: Taylor & Francis.
Trích dẫn kiểu ChicagoRomana, Manuel. Underground Works Under Special Conditions: Proceedings of the Workshop (W1), Madrid, Spain, 6-7 July 2007 (Paperback). London: Taylor & Francis, 2007.
Deismireacht MLARomana, Manuel. Underground Works Under Special Conditions: Proceedings of the Workshop (W1), Madrid, Spain, 6-7 July 2007 (Paperback). London: Taylor & Francis, 2007.
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