Gaya APA

Brown, P., Levinson, S, C. (1992). Politeness : some universals in language usage (studies in interactional sociolinguistics 4) . Cambridge: Effendiharahap Publishing Coy.

Gaya MLA

Brown, Penelope., Levinson, Stephen, C.. "Politeness : some universals in language usage (studies in interactional sociolinguistics 4)". Cambridge: Effendiharahap Publishing Coy, 1992. Text.