Gaya APA

VanPatten, B., Williams, J. (2015). Theories in second language acquisition: an introduction (2nd ed.). New York: Routledge Taylor & Francis Group.

Gaya MLA

VanPatten, Bill., Williams, Jessica. "Theories in second language acquisition: an introduction". 2nd ed. New York: Routledge Taylor & Francis Group, 2015. Text.