APA (7th ed.) Citation

Campbell, F. F., Creed, P. P., & Massey, D. D. (2006). Clockwise. Intermediate: Teacher's resource pack. University Press.

Chicago Style (17th ed.) Citation

Campbell, F. Fiona, P. Patrick Creed, and D. David Massey. Clockwise. Intermediate: Teacher's Resource Pack. Oxford: University Press, 2006.

MLA (8th ed.) Citation

Campbell, F. Fiona, et al. Clockwise. Intermediate: Teacher's Resource Pack. University Press, 2006.