León Roberto T., Santana, G., Workshop of the Costa Rica Earthquakes of 1990-1991 : Effects on Soils and Structures (1992 ap. : Costa Rica), & Youd, T. L. (1992). Proceedings of the NSF. [S.l.]: Oakland, Calif. : Earthquake Engineering Research Institute.
Chicago Style CitationLeón Roberto T., Guillermo Santana, Workshop of the Costa Rica Earthquakes of 1990-1991 : Effects on Soils and Structures (1992 ap. : Costa Rica), and T. Leslie Youd. Proceedings of the NSF. [S.l.]: Oakland, Calif. : Earthquake Engineering Research Institute, 1992.
MLA CitationLeón Roberto T., Guillermo Santana, Workshop of the Costa Rica Earthquakes of 1990-1991 : Effects on Soils and Structures (1992 ap. : Costa Rica), and T. Leslie Youd. Proceedings of the NSF. [S.l.]: Oakland, Calif. : Earthquake Engineering Research Institute, 1992.