APA استشهاد

 Ibbotson, M. (2009).  Professional English in use. Engineering technical English for professionals.  Cambridge Universty Press.

استشهاد بنمط شيكاغو

 Ibbotson, Mark.  Professional English in Use. Engineering Technical English for Professionals.  Cambridge Universty Press, 2009.

MLA استشهاد

 Ibbotson, Mark.  Professional English in Use. Engineering Technical English for Professionals.  Cambridge Universty Press, 2009.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.