APA (7th ed.) Citation

Brown, H. D. (1987). Principles of language learning and teaching (2. ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Brown, H. Douglas. Principles of Language Learning and Teaching. 2. ed. Englewood Cliffs, NJ: Prentice-Hall, 1987.

MLA (9th ed.) Citation

Brown, H. Douglas. Principles of Language Learning and Teaching. 2. ed. Prentice-Hall, 1987.