APA
Wörtler M., Boston Consulting Group, . (2013). Steel's contribution to a low-carbon Europe 2050. Boston: The Boston Consulting Group.
Chicago
Wörtler Martin, Boston Consulting Group, . 2013. Steel's contribution to a low-carbon Europe 2050. Boston: The Boston Consulting Group.
Harvard
Wörtler M., Boston Consulting Group, . (2013). Steel's contribution to a low-carbon Europe 2050. Boston: The Boston Consulting Group.
MLA
Wörtler Martin, Boston Consulting Group, . Steel's contribution to a low-carbon Europe 2050. Boston: The Boston Consulting Group. 2013.