APA (7th ed.) Citation

Potten & Donaghue. (2000). Clockwise: Pre-intermediate. Oxford University Press.

Chicago Style (17th ed.) Citation

Potten and Donaghue. Clockwise: Pre-intermediate. Oxford: Oxford University Press, 2000.

MLA (8th ed.) Citation

Potten and Donaghue. Clockwise: Pre-intermediate. Oxford University Press, 2000.

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