APA (7th ed.) Citation

Shirreffs, B., & Conway, D. (2011). On course for IELTS - student's book. Oxford.

Chicago Style (17th ed.) Citation

Shirreffs, Brett, and Darrean Conway. On Course for IELTS - Student's Book. Oxford, 2011.

MLA (8th ed.) Citation

Shirreffs, Brett, and Darrean Conway. On Course for IELTS - Student's Book. Oxford, 2011.

Warning: These citations may not always be 100% accurate.