YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
Chicagoスタイル(17版)引用形式YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
MLA(9版)引用形式YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
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