APA (7th ed.) Citation

Naylor, H., Naylor, H., Hagger, S., & Hagger, S. (1999). Cambridge first certificate handbook. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Naylor, Helen, Helen Naylor, Stuart Hagger, and Stuart Hagger. Cambridge First Certificate Handbook. Cambridge: Cambridge Univ. Press, 1999.

MLA (9th ed.) Citation

Naylor, Helen, et al. Cambridge First Certificate Handbook. Cambridge Univ. Press, 1999.