APA (7th ed.) Citation

McGowen, B. B., & Richardson, V. V. (2000). Clockwise. Pre-intermediate: Teacher's book. University Press.

Chicago Style (17th ed.) Citation

McGowen, B. Bruce, and V. Vic Richardson. Clockwise. Pre-intermediate: Teacher's Book. Oxford: University Press, 2000.

MLA (8th ed.) Citation

McGowen, B. Bruce, and V. Vic Richardson. Clockwise. Pre-intermediate: Teacher's Book. University Press, 2000.