APA (7th ed.) Citation

Clark, M. H., & Clark, C. H. (2004). The christmas thief. Simon & Shuster.

Chicago Style (17th ed.) Citation

Clark, Mary Higgins, and Carol Higgins Clark. The Christmas Thief. London: Simon & Shuster, 2004.

MLA (9th ed.) Citation

Clark, Mary Higgins, and Carol Higgins Clark. The Christmas Thief. Simon & Shuster, 2004.

Warning: These citations may not always be 100% accurate.