Style de citation APA (7e éd.)

Doughty, C. J., & Williams, J. (1998). Focus on form in classroom second language acquisition. Cambridge University.

Style de citation Chicago (17e éd.)

Doughty, Catherine J., et Jessica Williams. Focus on Form in Classroom Second Language Acquisition. Nueva York: Cambridge University, 1998.

Style de citation MLA (9e éd.)

Doughty, Catherine J., et Jessica Williams. Focus on Form in Classroom Second Language Acquisition. Cambridge University, 1998.