Style de citation APA

Michael Duckworth. (1999). Countdown to first certificate ( Teacher's book ). Oxford: Oxford Univ. Press.

Style de citation Chicago

Michael Duckworth. Countdown to First Certificate ( Teacher's Book ). Oxford: Oxford Univ. Press, 1999.

Style de citation MLA

Michael Duckworth. Countdown to First Certificate ( Teacher's Book ). Oxford: Oxford Univ. Press, 1999.

Attention : ces citations peuvent ne pas être correctes à 100%.