APA (7th ed.) Citation

Lawrence, D. H., Baron, C., & Baron, H. (1994). Sons and lovers. Penguin Books.

Chicago Style (17th ed.) Citation

Lawrence, D. H., Carl Baron, and Helen Baron. Sons and Lovers. London: Penguin Books, 1994.

MLA (9th ed.) Citation

Lawrence, D. H., et al. Sons and Lovers. Penguin Books, 1994.