APA (7th ed.) Citation

Barry, R. E. (2000). Mr. Willowby's Christmas tree. Doubleday Book for Young Readers.

Chicago Style (17th ed.) Citation

Barry, Robert E. Mr. Willowby's Christmas Tree. New York: Doubleday Book for Young Readers, 2000.

MLA (9th ed.) Citation

Barry, Robert E. Mr. Willowby's Christmas Tree. Doubleday Book for Young Readers, 2000.