APA-referens (7:e uppl.)

Mackey, A., & Gass, S. M. (2005). Second language research: Methodology and design. Lawrence Erlbaum ; Routledge.

Chicago-referens (17:e uppl.)

Mackey, Alison, och Susan M. Gass. Second Language Research: Methodology and Design. Mahwah, NJ : New York: Lawrence Erlbaum ; Routledge, 2005.

MLA-referens (8:e uppl.)

Mackey, Alison, och Susan M. Gass. Second Language Research: Methodology and Design. Lawrence Erlbaum ; Routledge, 2005.