APA استشهاد

Richards, J. C., & Bohlke, D. (2012). Speak now 3: Communicate with confidence. New York: Oxford University Press.

استشهاد بنمط شيكاغو

Richards, Jack C., و David Bohlke. Speak Now 3: Communicate With Confidence. New York: Oxford University Press, 2012.

MLA استشهاد

Richards, Jack C., و David Bohlke. Speak Now 3: Communicate With Confidence. New York: Oxford University Press, 2012.

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