Gass, S. M., Behney, J., & Plonsky, L. (2013). Second language acquisition: An introductory course (Fourth edition.). Routledge.
Lua i Stíl Chicago (17ú heag.)Gass, Susan M., Jennifer Behney, agus Luke Plonsky. Second Language Acquisition: An Introductory Course. Fourth edition. New York: Routledge, 2013.
Lua MLA (8ú heag.)Gass, Susan M., et al. Second Language Acquisition: An Introductory Course. Fourth edition. Routledge, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.