APA Style

McCarter, S. (2014). Improve your skills writing for IELTS with answer key 4.5-6.0 (1). London: Palgrave Macmillan.

MLA Style

McCarter, Sam. "Improve your skills writing for IELTS with answer key 4.5-6.0". 1 London: Palgrave Macmillan, 2014. Text.