Cita APA (7th ed.)
Brown, D. H. (1987). Principles of language learning and teaching (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)
Brown, Douglas H. Principles of Language Learning and Teaching. 2nd ed. New Jersey: Prentice-Hall, 1987.
Cita MLA (9th ed.)
Brown, Douglas H. Principles of Language Learning and Teaching. 2nd ed. Prentice-Hall, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.