Cita APA (7th ed.)

Naylor, H. a. H. (1999). Cambridge first certificate handbook. Cambridge University Press.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

Naylor, Helen and Hagger. Cambridge First Certificate Handbook. Cambridge University Press, 1999.