Cita APA (7th ed.)

Johnson, M. (2004). A philosophy of second language acquisition (1a. ed.). Yale University.

Cita Chicago (17th ed.)

Johnson, Marysia. A Philosophy of Second Language Acquisition. 1a. ed. New Haven: Yale University, 2004.

Cita MLA (9th ed.)

Johnson, Marysia. A Philosophy of Second Language Acquisition. 1a. ed. Yale University, 2004.