APA Citatie

Naunton, J., & Clark, P. (2000). Clockwise: Upper - intermediate : Teacher's book. New York: Oxford University Press.

Chicago Style citaat

Naunton, Jon., en Paul Clark. Clockwise: Upper - Intermediate : Teacher's Book. New York: Oxford University Press, 2000.

MLA citatie

Naunton, Jon., en Paul Clark. Clockwise: Upper - Intermediate : Teacher's Book. New York: Oxford University Press, 2000.