Cita APA (7a ed.)

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. Englewood Cliffs, New Jersey: Prentice-Hall, 1980.

Cita MLA (9a ed.)

Brown, H. Douglas. Principles of Language Learning and Teaching. Prentice-Hall, 1980.