O'Dell, F., & Broadhead, A. (2014). Objective advanced: [C1 English profile ; for revised exam from 2015 ; Cambridge official preparation material] (4. ed.). Cambridge Univ. Press.
Chicago Style (17th ed.) CitationO'Dell, Felicity, and Annie Broadhead. Objective Advanced: [C1 English Profile ; for Revised Exam from 2015 ; Cambridge Official Preparation Material]. 4. ed. Cambridge: Cambridge Univ. Press, 2014.
MLA (9th ed.) CitationO'Dell, Felicity, and Annie Broadhead. Objective Advanced: [C1 English Profile ; for Revised Exam from 2015 ; Cambridge Official Preparation Material]. 4. ed. Cambridge Univ. Press, 2014.
Warning: These citations may not always be 100% accurate.