Willis, R. J. B., Baildam, E., & Marshall, D. (2001). How to stay healthy. The Stanborough Press.
Lua i Stíl Chicago (17ú heag.)Willis, Richard J. B., Eileen Baildam, agus David Marshall. How to Stay Healthy. Grantham: The Stanborough Press, 2001.
Lua MLA (9ú heag.)Willis, Richard J. B., et al. How to Stay Healthy. The Stanborough Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.