APA (7th ed.) Citation

Ward, A., & Whitney, N. (1995). Open doors: Teacher's book. 2.

Chicago Style (17th ed.) Citation

Ward, Ann, and Norman Whitney. Open Doors: Teacher's Book. 2. Oxford, 1995.

MLA (9th ed.) Citation

Ward, Ann, and Norman Whitney. Open Doors: Teacher's Book. 2. 1995.