Cita APA (7th ed.)

Gass, S. M., Behney, J., & Plonsky, L. (2020). Second language acquisition: An introductory course (Fifth edition.). Taylor & Francis Group.

Cita Chicago (17th ed.)

Gass, Susan M., Jennifer Behney, i Luke Plonsky. Second Language Acquisition: An Introductory Course. Fifth edition. New York, USA: Taylor & Francis Group, 2020.

Cita MLA (9th ed.)

Gass, Susan M., et al. Second Language Acquisition: An Introductory Course. Fifth edition. Taylor & Francis Group, 2020.