APA

Cotton D., Flavey D. (. a. ). & Kent S. (. a. ). (2001). Upper intermediate businessEnglish Course book. London: Pearson education.

Chicago

Cotton David, Flavey David (A author ) and Kent Simon (A author ). 2001. Upper intermediate businessEnglish Course book. London: Pearson education.

Harvard

Cotton D., Flavey D. (. a. ). and Kent S. (. a. ). (2001). Upper intermediate businessEnglish Course book. London: Pearson education.

MLA

Cotton David, Flavey David (A author ) and Kent Simon (A author ). Upper intermediate businessEnglish Course book. London: Pearson education. 2001.