McKenna, C. (1998). Powerful communication skills: How to communicate with confidence. Franklin Lakes, N.J: Career Press.
استشهاد بنمط شيكاغوMcKenna, Colleen. Powerful Communication Skills: How to Communicate With Confidence. Franklin Lakes, N.J: Career Press, 1998.
MLA استشهادMcKenna, Colleen. Powerful Communication Skills: How to Communicate With Confidence. Franklin Lakes, N.J: Career Press, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.