Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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