Gaya APA

C., L, S., Penelope, B. (1987). Politeness: Some Universals In Language Usage (C. 2). New York: Cambridge University Press.

Gaya MLA

C., Levinson, Stephen., Penelope, Brawn. "Politeness: Some Universals In Language Usage". C. 2 New York: Cambridge University Press, 1987. Text.