APA (7th ed.) Citation

Gass, S. M., Mackey, A., & Polio, C. (2009). Multiple perspectives on interaction [: Second language research in honor of Susan M Gass. Routledge.

Chicago Style (17th ed.) Citation

Gass, Susan M., Alison Mackey, and Charlene Polio. Multiple Perspectives on Interaction [: Second Language Research in Honor of Susan M Gass. New York: Routledge, 2009.

MLA (9th ed.) Citation

Gass, Susan M., et al. Multiple Perspectives on Interaction [: Second Language Research in Honor of Susan M Gass. Routledge, 2009.