Gass, S. M., & Selinker, L. (2008). Second language acquisition: An introductory course (3a. ed.). Taylor and Francis.
Chicago Style (17. basım) AtıfGass, Susan M., ve Larry Selinker. Second Language Acquisition: An Introductory Course. 3a. ed. Londres: Taylor and Francis, 2008.
MLA (9th ed.) AtıfGass, Susan M., ve Larry Selinker. Second Language Acquisition: An Introductory Course. 3a. ed. Taylor and Francis, 2008.
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