APA引文

Doughty, C., & Williams, J. Focus on form in classroom second language acquisition (2a ed.).

Chicago Style (17th ed.) Citation

Doughty, Catherine, and Jessica Williams. Focus on Form in Classroom Second Language Acquisition. 2a ed.

MLA引文

Doughty, Catherine, and Jessica Williams. Focus on Form in Classroom Second Language Acquisition. 2a ed.

警告：這些引文格式不一定是100％准確.