Cita APA (7th ed.)

Blundell, J., Higgens, J., & Middlemiss, N. (1982). Function in english. Oxford University Press.

Cita Chicago (17th ed.)

Blundell, Jon, Jonathan Higgens, i Nigel Middlemiss. Function in English. Oxford: Oxford University Press, 1982.

Cita MLA (9th ed.)

Blundell, Jon, et al. Function in English. Oxford University Press, 1982.