Oï Dell, F., & Broadhead, A. (2008). Objective.CAE: Self-study student's book (2a. ed.). Cambridge University.
Chicago Style (17th ed.) CitationOï Dell, Felicity, and Annie Broadhead. Objective.CAE: Self-study Student's Book. 2a. ed. Cambridge: Cambridge University, 2008.
MLA引文Oï Dell, Felicity, and Annie Broadhead. Objective.CAE: Self-study Student's Book. 2a. ed. Cambridge University, 2008.
警告:這些引文格式不一定是100%准確.