Brown, H. D. (1980). Principles of Language Learning and Teaching. Prentice-Hall.
Cita Chicago Style (17a ed.)Brown, H. Douglas. Principles of Language Learning and Teaching. New Jersey, Estados Unidos: Prentice-Hall, 1980.
Cita MLA (9a ed.)Brown, H. Douglas. Principles of Language Learning and Teaching. Prentice-Hall, 1980.
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