APA (7th ed.) Citation

Lawrence, D. H., Baron, H., & Baron, C. (2006). Sons and lovers. Penguin books.

Chicago Style (17th ed.) Citation

Lawrence, D. H., Helen Baron, and Carl Baron. Sons and Lovers. London ; New York: Penguin books, 2006.

MLA (8th ed.) Citation

Lawrence, D. H., et al. Sons and Lovers. Penguin books, 2006.