Cita APA (7a ed.)

Hawkins, J. A., Filipovic, L., & Buttery, P. (2012). Criterial features in L2 English: Specifying the reference levels of the common European framework. Cambridge University Press.

Cita Chicago Style (17a ed.)

Hawkins, John A., Luna Filipovic, y Paula Buttery. Criterial Features in L2 English: Specifying the Reference Levels of the Common European Framework. Cambridge [etc.]: Cambridge University Press, 2012.

Cita MLA (9a ed.)

Hawkins, John A., et al. Criterial Features in L2 English: Specifying the Reference Levels of the Common European Framework. Cambridge University Press, 2012.