APA Style

Wilson, W., Barnard, R. (2007). Fifty-fifty: a speaking and listening course (ed.1.Jil2). New York: Pearson Longman Asia ELT.

MLA Style

Wilson, Warren., Barnard, Roger. "Fifty-fifty: a speaking and listening course". ed.1.Jil2 New York: Pearson Longman Asia ELT, 2007. Text.