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Lua i Stíl Chicago (17ú heag.)International Association for Bridge and Structural Engineering. Problems Associated with Design and Construction Developing Countries =: Conception, Projet Et Execution De Constructions Dans Les Regions En Developpement = Planen Und Bauen in Entwicklungsgebieten : Introductory Report. Zurich: ETH-Honggerberg, International Association for Bridge and Structural Engineering, 1977.
Lua MLA (8ú heag.)International Association for Bridge and Structural Engineering. Problems Associated with Design and Construction Developing Countries =: Conception, Projet Et Execution De Constructions Dans Les Regions En Developpement = Planen Und Bauen in Entwicklungsgebieten : Introductory Report. ETH-Honggerberg, International Association for Bridge and Structural Engineering, 1977.