APA引文

Richards, J. C., & Bohlke, D. (2012). Speak now 1: Communicate with confidence. New York: Oxford University Press.

Trích dẫn kiểu Chicago

Richards, Jack C., và David Bohlke. Speak Now 1: Communicate With Confidence. New York: Oxford University Press, 2012.

MLA引文

Richards, Jack C., và David Bohlke. Speak Now 1: Communicate With Confidence. New York: Oxford University Press, 2012.