Citazione Stile APA (7a Edizione)

Willis, R. J. B., Baildam, E., & Marshall, D. (2001). How to stay healthy. The Stanborough Press.

Citazione stile Chigago Style (17a edizione)

Willis, Richard J. B., Eileen Baildam, e David Marshall. How to Stay Healthy. Grantham: The Stanborough Press, 2001.

Citatione MLA (9a ed.)

Willis, Richard J. B., et al. How to Stay Healthy. The Stanborough Press, 2001.