Suárez Burgoa, L. (2009). Underground works in conurbations: Solutions under the surface for problems on the surface. Universidad Católica de Colombia.
Čikaški stil citiranjaSuárez Burgoa, Ludger. Underground Works in Conurbations: Solutions Under the Surface for Problems On the Surface. Universidad Católica de Colombia, 2009.
MLA način citiranjaSuárez Burgoa, Ludger. Underground Works in Conurbations: Solutions Under the Surface for Problems On the Surface. Universidad Católica de Colombia, 2009.
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