Ibbotson, M. (2009). Professional English in use: Engineering. Technical English for professionals. Cambridge University Press.
Chicago-Zitierstil (17. Ausg.)Ibbotson, Mark. Professional English in Use: Engineering. Technical English for Professionals. Cambridge: Cambridge University Press, 2009.
MLA-Zitierstil (9. Ausg.)Ibbotson, Mark. Professional English in Use: Engineering. Technical English for Professionals. Cambridge University Press, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.