YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
Cita Chicago (17th ed.)YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
Cita MLA (9th ed.)YouTube. Lucas Bretschger, Economics of Sustainable Construction - Holcim Forum 2013.
Atenció: Aquestes cites poden no estar 100% correctes.