Marc Helgesen. (1994). Active listening building - students'book 2: Building skills for understanding. Cambridge, UK: Cambridge university press.
استشهاد بنمط شيكاغوMarc Helgesen. Active Listening Building - Students'book 2: Building Skills for Understanding. Cambridge, UK: Cambridge university press, 1994.
MLA استشهادMarc Helgesen. Active Listening Building - Students'book 2: Building Skills for Understanding. Cambridge, UK: Cambridge university press, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.