APA (7th ed.) Citation

Gairns, R., & Redman, S. (2002). Natural English: Intermediate student's book. Oxford University Press.

Chicago Style (17th ed.) Citation

Gairns, Ruth, and Stuart Redman. Natural English: Intermediate Student's Book. Oxford: Oxford University Press, 2002.

MLA (9th ed.) Citation

Gairns, Ruth, and Stuart Redman. Natural English: Intermediate Student's Book. Oxford University Press, 2002.