Cita APA (7a ed.)

Nunan, D. (1989). Understanding language classrooms: A guide for teacher-initiated action. Prentice Hall.

Cita Chicago Style (17a ed.)

Nunan, David. Understanding Language Classrooms: A Guide for Teacher-initiated Action. New York: Prentice Hall, 1989.

Cita MLA (9a ed.)

Nunan, David. Understanding Language Classrooms: A Guide for Teacher-initiated Action. Prentice Hall, 1989.