Nunan, D. (1989). Understanding language classrooms: A guide for teacher-initiated action. Prentice-Hall.
芝加哥风格引文Nunan, David. Understanding Language Classrooms: A Guide for Teacher-initiated Action. Englewood Cliffs, N.J: Prentice-Hall, 1989.
MLA引文Nunan, David. Understanding Language Classrooms: A Guide for Teacher-initiated Action. Prentice-Hall, 1989.
警告：这些引文格式不一定是100％准确.