APA (7th ed.) Citation

Lewis, C. S. (1956). The Chronicles of Narnia the Last Battle No. 7. HarperCollins Children's Books.

Chicago Style (17th ed.) Citation

Lewis, C. S. The Chronicles of Narnia the Last Battle No. 7. London: HarperCollins Children's Books, 1956.

MLA (9th ed.) Citation

Lewis, C. S. The Chronicles of Narnia the Last Battle No. 7. HarperCollins Children's Books, 1956.