SCHEER, J. (2010). Failed Bridges Case Studies, Cause and Consequences. Ernst & Shon.
Lua i Stíl Chicago (17ú heag.)SCHEER, Joachim. Failed Bridges Case Studies, Cause and Consequences. Ernst & Shon, 2010.
Lua MLA (8ú heag.)SCHEER, Joachim. Failed Bridges Case Studies, Cause and Consequences. Ernst & Shon, 2010.
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