Citazione Stile APA (7a Edizione)

Gass, S. M., Behney, J., & Plonsky, L. (2013). Second language acquisition: An introductory course (Fourth edition.). Routledge.

Citazione stile Chigago Style (17a edizione)

Gass, Susan M., Jennifer Behney, e Luke Plonsky. Second Language Acquisition: An Introductory Course. Fourth edition. New York: Routledge, 2013.

Citatione MLA (8a ed.)

Gass, Susan M., et al. Second Language Acquisition: An Introductory Course. Fourth edition. Routledge, 2013.