Cita APA (7th ed.)

Mackey, A., & Gass, S. M. (2005). Second language research: Methodology and design (1a. ed.). Lawrence Erlbaum Associates.

Cita Chicago (17th ed.)

Mackey, Alison, i Susan M. Gass. Second Language Research: Methodology and Design. 1a. ed. Mahwah: Lawrence Erlbaum Associates, 2005.

Cita MLA (9th ed.)

Mackey, Alison, i Susan M. Gass. Second Language Research: Methodology and Design. 1a. ed. Lawrence Erlbaum Associates, 2005.