Cita APA (7th ed.)

Gass, S. M., & Selinker, L. (2008). Second language acquisition: An introductory course (3rd ed.). Routledge/Taylor & Francis Group.

Cita Chicago (17th ed.)

Gass, Susan M., i Larry Selinker. Second Language Acquisition: An Introductory Course. 3rd ed. New York: Routledge/Taylor & Francis Group, 2008.

Cita MLA (9th ed.)

Gass, Susan M., i Larry Selinker. Second Language Acquisition: An Introductory Course. 3rd ed. Routledge/Taylor & Francis Group, 2008.