APA (7th ed.) Citation

Lees, C., McCartan, G., & Reynolds, K. (2003). The pregnancy question & answer book. A Dorling Kindersley.

Chicago Style (17th ed.) Citation

Lees, Christoph, Grainne McCartan, and Karina Reynolds. The Pregnancy Question & Answer Book. London: A Dorling Kindersley, 2003.

MLA (9th ed.) Citation

Lees, Christoph, et al. The Pregnancy Question & Answer Book. A Dorling Kindersley, 2003.